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Heritage to Auction Collection of 1994 Denver Mint Cancelled Dies Certified by NGC

This collection includes official U.S. Mint cancelled and defaced Cent, Dime and Quarter dies, all from the Denver Mint...

Mint Errors To Die For 3rd Edition Now Available

The exciting 3rd Edition of Joe Cronin's book Mint Errors To Die For is now available...

Famous Sacagawea Mule Dollar Coin Error to be Auctioned by GreatCollections

About Two Dozen Known; Tied for Finest Graded at PCGS...

Mint Errors Featured in the Upcoming Heritage January 2024 FUN US Coins Signature® Auction

The following mint errors are featured in the upcoming January 2024 FUN US Coins Signature® Auction...

Heritage Auctions is Offering the 4th Known 2001-D Lincoln Cent Muled with a Roosevelt Dime Reverse

The 4th Known Cent/Dime Mule is featured in the January 2024 FUN US Coins Signature® Auction...

Mint Errors Featured in the Upcoming Heritage September 2023 Error Coinage US Coins Showcase Auction

The following mint errors are featured in the upcoming September 2023 Error Coinage US Coins Showcase Auction...

Unique Off-Center $20 Liberty Sells for $132,000 in Heritage Auction

This spectacular $20 Liberty Gold Piece is the only off-center known...

Highest Prices Realized for Intentional Mint Errors Sold in Heritage Auctions

The following intentional mint errors have sold in past Heritage Auctions...

Prices Realized For Mint Errors Sold in the Heritage June 2023 Error Coinage US Coins Showcase Auction

The following mint errors sold in the June 2023 Error Coinage US Coins Showcase Auction...

More Exciting Mint Errors Featured in the Heritage June 2023 Error Coinage US Coins Showcase Auction

The following mint errors are featured in the upcoming June 2023 Error Coinage US Coins Showcase Auction...

Top Mint Errors For 2022

Here are a few of the highest prices realized for Major Mint Errors sold during 2022...

Mint Errors Featured in the Upcoming June 2023 Error Coinage US Coins Showcase Heritage Auction

The following mint errors are featured in the upcoming June 2023 Error Coinage US Coins Showcase Auction...

Mint Errors Featured in the Upcoming May 2023 Central States Heritage Auction

The following mint errors are featured in the Upcoming May 2023 CSNS US Coins Signature Auction...

New Error Coin Discovery: Dr. Sally Ride Quarter on Nickel Planchet Error Coin in GreatCollections April 30th Auction

Issued in 2022, the Dr. Sally Ride quarter was released as part of the inaugural year of the American Women Quarters Program by the U.S. Mint...

Prices Realized in the March 2023 Error Coinage US Coins Showcase Heritage Auction

The following mint errors sold in the March 2023 Error Coinage US Coins Showcase Auction...

Prototype Eisenhower Dollars - Considering the Chatham Specimen as the First Prototype Variety

The working prototype 1971-S Eisenhower Dollars are one of the most interesting and important discoveries in numismatics in recent years...

Mint Errors Sold in the Upcoming December 2022 Heritage Auction of The Misfits Collection of U.S. Error Coinage, Part 2

Here are some of the exciting and rare mint errors that brought strong prices in The Misfits Collection of U.S. Error Coinage, Part 2 Showcase Auction...

Mint Errors Featured in the Upcoming December 2022 Heritage Auction of The Misfits Collection of U.S. Error Coinage, Part 2

The following mint errors are featured in The Misfits Collection of U.S. Error Coinage, Part 2 Showcase Auction...

Prices Realized for the November 2022 Heritage Auction of The Misfits Collection of U.S. Error Coinage, Part 1

The following mint errors sold in The Misfits Collection of U.S. Error Coinage, Part 1 Showcase Auction...

Two Mint Errors with Famous Pedigrees Featured in Heritage Auctions December 2022 Sale of The Misfits Collection of U.S. Error Coinage

The following mint errors are featured in The Misfits Collection of U.S. Error Coinage, Part 2 Showcase Auction...

1974-S Lincoln Cent Struck in Aluminum to be Auctioned by GreatCollections

It is believed unique and is likely one of only two Aluminum 1974 Cents legal to own (the other being a uniface reverse on Philippines planchet)...

Exotic and Intentional U.S. Error Coins In The Marketplace

One of the most controversial categories of U.S. coins are mint errors...

1943 Lincoln Cent Bronze/Copper PCGS AU-50 BN CAC Offered by GreatCollections

It is the second of only five known examples of the ultra-rare 1913 Liberty Head Nickel purchased by GreatCollections within 12 months...

Walton 1913 Liberty Head Nickel Acquired by GreatCollections for $4.2 million

It is the second of only five known examples of the ultra-rare 1913 Liberty Head Nickel purchased by GreatCollections within 12 months...

Frosted Freedom $100 Platinum Trial to be Auctioned by GreatCollections

Just 12 examples minted as production proofs. The first and only to be certified by PCGS...

Top Mint Errors For 2021

Here are a few of the highest prices realized for Major Mint Errors auctioned during 2021...

Prices Realized for Mint Errors & Patterns in the August 2022 ANA Heritage Auction

The following mint errors & patterns sold in the August 2022 US Coins Signature® Auction...

NGC-certified Sovereigns with Mint Errors Offered in Heritage Sale

The British gold coins are each expected to sell for tens of thousands of dollars in the August auction...

Mint Errors & Patterns Featured in the August 2022 ANA Heritage Auction

The following mint errors and patterns are featured in the upcoming August 2022 US Coins Signature® Auction...

NGC Certifies 1906 Indian Head Cent Struck on a Mexican Gold 5 Pesos Planchet Offered in GreatCollections Auction

Here are some Mint Error News Exclusive Images courtesy of Dave Camire...

Prices Realized in the July 2022 Error Coinage Showcase Heritage Auction

The following mint errors sold in the July 2022 Error Coinage US Coins Showcase Auction...

Prices Realized for Mint Errors in the July 2022 Long Beach Expo/Summer FUN Heritage Auction

The following mint errors sold in the July 2022 Long Beach Expo/Summer FUN US Coins Signature Auction...

GreatCollections Offers "The Edgemont Collection of Lincoln Cents" Including 1943-D/D

GreatCollections is proud to present "The Edgemont Collection of Lincoln Cents" in our auctions...

Unique 1795 Draped Bust Dollar Struck on a Copper Planchet Certified by PCGS Sells For Mid Six-Figures

This is one of the most spectacular and amazing United States numismatic rarities of all time...

Unique GOLD Buffalo Sells For $400,000

As amazing as it sounds, this is a 1913 Buffalo Nickel struck on a U.S. $5 Gold planchet...

Mint Errors Featured in the July 2022 Error Coinage Showcase Heritage Auction

The following mint errors are featured in the upcoming July 2022 Error Coinage US Coins Showcase Auction...

NGC Certifies Unique Off-Center 'Grand Snake' 1882-CC Morgan Dollar in GSA Holder

The coin's whereabouts have been a mystery since 1973, when it made history as an error sold by the Mint...

Prices Realized for Mint Errors Featured in the May 2022 Central States Heritage Auction

The following mint errors sold in the May 2022 Central States US Coins Signature Auction...

Highlights From The Fred Weinberg Collection Sold By Heritage Auctions

The following mint errors sold in the May 2022 Central States US Coins Signature Auction...

1944 Off-Metal Lincoln Cents: Experimental or on Foreign Planchets??

Although the PCGS insert designates these as Struck on Experimental Planchets, they very likely were struck on foreign planchets...

GreatCollections to Auction PCGS Certified 3 Piece "Clover Leaf" Proof Ike Dollars on 10¢ Planchets

As incredible as it seems, PCGS has just certified the second known "Clover Leaf" of 3 Proof Ike Dollars struck on dime planchets...

Mint Errors Featured in Upcoming May 2022 Central States Heritage Auction

The following mint errors are featured in the upcoming May 2022 Central States US Coins Signature Auction...

Prices Realized for Proof Errors Featured in March 2022 Error Coinage Showcase Heritage Auction

The following proof errors were featured in the March 28, 2022 Don Bonser Collection of United States Error Coins Part 5 US Coins Showcase Auction...

Exciting Patterns From the Heritage FUN 2022 Auction

The Heritage FUN 2022 sale was exciting for patterns, being led by the Virgil Brand 1874 gold Bickford $10 Eagle selling for nearly $2 million...

Proof Errors Featured in Upcoming March 2022 Error Coinage Showcase Heritage Auction

The following proof errors are featured in the upcoming March 28, 2022 Don Bonser Collection of United States Error Coins Part 5 US Coins Showcase Auction...

Prices Realized in The February 2022 Long Beach Expo Heritage US Coins Signature Auction

The following coins sold in the February 2022 Long Beach Expo US Coins Signature Auction...

Dave Camire and NGC Conserve Coins From The S.S. Pulaski Shipwreck

Mint Error News conducted an exclusive interview with Dave Camire regarding his appearance on the Discovery Channel...

Lincoln Cent Muled With a Roosevelt Dime Reverse Featured in Upcoming February 2022 Long Beach Heritage Auction

The following Cent/Dime Mule is featured in the February 2022 Long Beach US Coins Signature Auction...

America's First Silver Dollar Acquired for $12 Million by GreatCollections

World's Most Valuable Silver Coin and Second Highest Price Ever Paid for a Rare Coin...

GreatCollections Offers Proof Error Coins in Upcoming Auction

GreatCollections is offering an exciting group of U.S. Major Mint Errors including the following proof errors...

Strong Prices Realized for Mint Errors in January 2022 Heritage Auction

The following mint errors sold in the January 2022 Error Coinage Showcase Heritage Auction...

Highest Prices Realized For U.S. Mint Errors & Die Trials In Heritage Auctions - Part 3

Here is a continuation of the highest prices realized for U.S. Mint Errors and Die Trials in Heritage Auctions as of December 2021...

Highest Prices Realized For U.S. Mint Errors & Die Trials In Heritage Auctions - Part 2

Here is a continuation of the highest prices realized for U.S. Mint Errors and Die Trials in Heritage Auctions as of December 2021...

Highest Prices Realized For U.S. Mint Errors & Die Trials In Heritage Auctions - Part 1

Here is a compilation of the highest prices realized for U.S. Mint Errors and Die Trials in Heritage Auctions as of June 2021...

1943 Lincoln Cent Bronze/Copper PCGS AU-50 BN Offered in GreatCollections Auction

A "1943 Copper Penny" is one of the most famous coin errors in the world, with less than 20 examples believed to have survived...

Eisenhower Dollar Prototype Sells For Record Price of $264,000 in January 2022 FUN Heritage Auction

This prototype is one of the rarest of all silver dollars struck since 1794...

Finest 1913 Nickel Acquired by GreatCollections in $13 Million "Big Three" Thanksgiving Transaction

The "Big Three" Includes the 1913 Nickel, 1894-S Dime & 1804 Silver Dollar...

U.S. Mint Releases the Mintage of the $10 ¼ oz American Gold Eagle Error

The U.S. Mint stated that 7,924 of the Gold Eagle error coins were released...

Proof Errors Featured in Upcoming January 2022 Error Coinage Showcase Heritage Auction

The following coins are featured in the upcoming Proof Errors Featured in Upcoming January 2022 Error Coinage Showcase Heritage Auction...

"King of Errors" Dallas $20/$10 Double Denomination Federal Reserve Note Featured in the January 2022 FUN Heritage Auction

The only double denomination to escape into the wild from the confines of the BEP since the 1950s...

Spectacular 1886 Morgan Dollar Die Cap Error Auctioned by GreatCollections

The famous coin was one of Amon Carter's personal favorites...

Mint Error News Press Release

Mint Error News is pleased to announce the addition of four new consultants...

Prices Realized For Proof Errors in January 2022 FUN Heritage Auction

The following coins are featured in the upcoming January 2022 FUN US Coins Signature Auction...

Undated PCGS Holder With Cricket Remains (From the Fred Weinberg Collection)

And so the legend goes, back in the 1990s, there was a cricket disturbing the coin graders at PCGS...

NGC-Certified INCO and Gould Patterns Offered in Heritage Sale

The fascinating numismatic collectibles were created amid the upheaval in US coinage that occurred during the 1960s and 1970s...

Prices Realized in the October 2021 Error Coinage US Coins Showcase Heritage Auction

The following coins sold in the October 2021 Error Coinage US Coins Showcase Heritage Auction...

U.S. Proof Error Coins Realize Strong Prices in October 2021 Long Beach Heritage Auction

The following coins sold in the October 2021 Long Beach Expo US Coins Signature Auction...

1792 Quarter Obverse & Reverse Die Trials Featured in the August 2021 ANA Heritage Auction

The following coin was featured the August 2021 ANA US Coins Signature Auction...

Fred Weinberg's Personal Error Coin Rarities on Display in Heritage Auctions' ANA Booth

1880-S Major Off-Center Morgan dollar and Sacagawea Quarter Mule offer collectors a once-in-a-generation opportunity...

Cent/Dime Mule Featured in June 2021 Long Beach Heritage Auction

In the long history of the U.S. Mint, mules are extremely rare...

Unique Octagonal Pan-Pac Fifty Hubs Trial Sells in April 2021 Heritage Central States Auction

The present piece is a unique hubs trial of these dies struck on an oversized copper planchet...

Seeing Double! Rare Doubled Die Cent Could Sell For Six Figures

The 1969-S Doubled Die is the key coin to the Lincoln Memorial Cent series that began in 1959...

Prices Realized in the May 2021 Don Bonser Error Collection, Part 3 US Coins Special Monthly Auction

The following coins sold in the May 2021 Don Bonser Error Collection, Part 3 US Coins Special Monthly Auction...

U.S. Proof Error Coins Offered in ANA Heritage Auction

The following coins are featured in the upcoming August 2021 ANA World's Fair Of Money US Coins Signature Auction...

Marc One Numismatics GRAND OPENING!!!

Marc One Numismatics is now open in Rancho Mirage, California...

Mint Errors Featured in July 2021 Error Coinage Showcase Heritage Auction

The following coins are featured in the July 2021 Error Coinage Showcase Heritage Auction...

Famous 1944 Cent Error Will Make Headlines

Whenever a 1943 Bronze Cent or a 1944 Steel Cent are sold, headlines are made...

Previously Unknown Sacagawea/Presidential Dollar Mule Sells In Heritage Auction

The following coin sold for $84,000 in the April 2021 Central States US Coins Signature Auction...

Prices Realized in the April 2021 US Error Coinage Special Online Heritage Auction

The following coins sold in the April 2021 Error Coinage US Coins Special Monthly Auction...

NGC Certified Amazing & Unique Proof Ike Dollar Clover Leaf Offered In Central States Heritage Auction

A showstopper mint error on a popular obsolete type...

Pedigrees, Prices & Quantity for Some Popular Error Coin Series

By Saul Teichmann of uspatterns...

The Conway Collection of Error Notes, Part I

Featured in the upcoming December 2020 Currency Online Auction...

1943 Bronze Cent, MS62 Brown, The c. 1957 Marvin Beyer Discovery

Approximately 20 Philadelphia Mint bronze cents dated 1943 are believed to exist...

Unique 1943-D Bronze Cent, MS64 Brown, Famous Wrong Planchet Error

The 1943-D bronze Lincoln cent is a legendary rarity, with just a single example known to collectors...

"The Del Monte Note" Obstructed Printing Error with Retained Obstruction

This highly unusual and colorful error note is commonly referred to by collectors in the numismatic fraternity as...

Prices Realized in the September 2020 Heritage Auction of the Bob R. Simpson Collection

The following coins sold in the September 2020 Important Selections from the Bob R. Simpson Collection...

Prices Realized in the August 2020 Error Coinage Special Online Heritage Auction

The following coins sold in the August 2020 Error Coinage US Coins Special Monthly Auction...

Prices Realized in The September 2020 Heritage US Coins Signature Auction

The following coins sold in the September 2020 US Coins Signature Auction...

Error Coin Sidelines George Washington

George Washington has been relegated to the sidelines on a fabulous error coin that Heritage will be offering...

Canadian Specimen Uniface Trial Strikes

The following Canadian Elizabeth II Specimen Uniface Trial Strikes are featured in the upcoming October 2020 World & Ancient Coins Platinum and Signature Online Auction...

A 1970s Mistake Becomes a 2020 Prize

First, this is supposed to be a dollar but was struck on a Half Dollar planchet...

Two Heads Are Better Than One

Discovered by the coin community only in the year 2000, the Double-Headed Indian Cent is so new to the scene that it is not yet listed...

Fascinating Die Cap Error Stars in Simpson Collection

This coin is amazing because of its huge starburst appearance...

Mint Errors Featured in the August 2020 Error Coinage Special Online Heritage Auction

The following coins are in the August 2020 Error Coinage US Coins Special Monthly Auction #60160...

Prices Realized in the August 2020 U.S. Coins Signature Heritage Auction

The following coins sold in the August 2020 U.S. Coins Signature Auction #1318...

Prices Realized in the June 2020 Long Beach Heritage Auction

The following coins sold in the June 2020 Long Beach Expo US Coins Signature Auction #1316...

Not Just Heads Or Tails

This amazing error coin that is part of Heritage's August Auction combines several mistakes...

2000-P "Mule" Sacagawea Dollar Reverse With States Quarter Obverse Census

There are now nineteen (19) confirmed specimens of the Sacagawea Dollar/Quarter Mule...

Prices Realized in the April 2020 Error Coin Online Heritage Auction

The following coins sold in the April 15, 2020 Error Coinage US Coins Month-Long Online Auction...

Prices Realized in the April 2020 Central States Heritage Auction

The following coins sold in the April 2020 Central States US Coins Signature Auction - Dallas #1314...

Prices Realized in the April 2020 Central States Heritage Currency Auction

The following coins sold in the April 2020 Central States Currency Signature Auction - Dallas #3577...

Unique Ike Dollar Multiple Mint Error

All Ike dollar off-metals are highly prized by serious collectors of major U.S. Mint Errors and collectors of Ike dollars...

Uncommon Walking Liberty Half Dollar Error Up For Bid

Considered by many to be one of the most attractive and artistic US coin designs...

Liberty Nickel Off-Metal Mint Errors Featured in the April 2020 Central States Heritage Auction

Heritage will be auctioning a few nickels that are only copper and contain no nickel at all...

Mint Errors Featured In Upcoming 2020 Heritage Auctions

Heritage is putting together a fascinating assortment of error coins for the inaugural Monthly Error Coin Auction...

PMG Grades Mismatched Serial Number Error on US $20 Bill

A 2020 FUN Show attendee discovered the note in her change at the show...

NGC Certifies Pattern Coins from the Estate of US Mint Chief Engraver Charles E. Barber

The patterns were struck in the late 1800's as proposed coin designs and compositions...

NGC-Certified 1831 Great Britain Coin Realizes $425,000 at CNG NYINC Auction

The gold rarity sold for more than twice its pre-sale estimate...

Prices Realized in the January 2020 FUN Heritage Auction

The following coins sold in the January 2020 FUN US Coins Signature Auction...

Pair of Famous Lincoln Cent Mint Errors Brought Together Under One Owner

The ultra-rare NGC-certified Lutes and Wing 1943 Bronze Cents each recently realized more than $200,000...

Mint Errors Featured In Upcoming 2020 Heritage Auctions

The following mint errors are featured in the following upcoming Heritage Auctions...

Rare Sacagawea Dollar Mule Is Among NGC and PMG Collectibles in Long Beach Auctions

The rare and distinctive mint error combines the Sacagawea Dollar reverse and the Washington Quarter obverse...

Prices Realized in the August 2019 ANA Heritage Auction

The following mint errors sold in the August 14-18, 2019 ANA World's Fair of Money US Coins Signature Auction...

Legendary Wrong-Planchet Rarity Sells in Heritage Auction at FUN Show

The 1943 bronze Lincoln cent is listed among both the 100 Greatest U.S. Coins and the 100 Greatest U.S. Error Coins...

Mint Errors Featured in Upcoming ANA Heritage Auction

The following mint errors are featured in the August 2019 ANA World's Fair of Money Heritage Auction...

Prices Realized in the June 2019 Long Beach Heritage Auction

The following mint errors sold in the June 6-9, 2019 Long Beach Expo US Coins Signature Auction...

NGC Certifies Rare 1943 Copper Cent

Fewer than two dozen Philadelphia Mint examples of these famous mint errors are known to exist...

NGC Now Certifies and Encapsulates Cancelled Dies

Here's how to submit these impressive numismatic collectibles to NGC...

Prices Realized in the April 2019 Central States Heritage Auction

The following mint errors sold in the April 2019 Central States (CSNS) US Coins Signature Auction...

Prices Realized in the March 2019 Denis Burger Collection of Crowns and Mint Errors Heritage Auction

The following mint errors sold in the March 2019 Denis Burger Collection of Crowns and Mint Errors...

NGC Attends 'First Strike' at Mint for Apollo 11 Coins

The coins will be released in January to celebrate the 50th anniversary of the moon landing....

Prices Realized In The January 2019 FUN Heritage Auction

The following mint errors sold in the January 9-14, 2019 FUN US Coins Signature Auction...

Prices Realized In The January 2019 NYINC Heritage Auction

The following mint errors sold in the January 6-7, 2019 NYINC World Coins Signature Auction...

NGC Certifies the King of Mint Errors

The first 1943 bronze cent to be discovered is now graded by NGC and was on display at the NGC booth at the ANA World's Fair of Money...

Prices Realized In The August 2018 ANA Heritage Auction

The following mint errors sold in the August 14-19 2018 ANA US Coins Signature Auction...

Prices Realized In The April 2018 Central States Heritage Auction

The following mint errors sold in the April 25-29, 2018 CSNS US Coins Signature Auction #1274...

Prices Realized In The June 2018 Long Beach Heritage Auction

The following mint errors sold in the June 14-17, 2018 Long Beach Expo US Coins Signature Auction #1276...

NGC-certified Sacagawea Dollar / Washington Quarter Mule Sets a Record

In a Stack's Bowers auction in March, the 17th known specimen realized $192,000...

Prices Realized In The January 2018 FUN Heritage Auction

The following coins sold in the January 3-8, 2018 FUN US Coins Signature Auction #1271...

Prices Realized In The February 2018 Long Beach Heritage Auction

The following coins sold in the February 22-26, 2018 Long Beach Expo US Coins Signature Auction #1272...

NGC Grades Likely Unique French Gold Pattern

The 1848A Essai 5 Franc is the only known gold 5 Franc of the Ceres design...

Prices Realized In The September 2017 Long Beach Heritage Auction

The following coins sold in the September 7-10, 2017 Long Beach Expo US Coins Signature Auction...

Pattern Overstrike Certified by NGC

Previously unreported and believed to be unique...

$20 Liberty Struck on a U.S. Large Cent Surfaces Again

The Unique 1851 US $20 struck on a U.S. Large Cent was displayed at the 2018 FUN show...

Famous 1943 Bronze Lincoln Cent Wrong Planchet Error Sells For $282,000

The 1943 bronze Lincoln cent is one of the most famous and sought-after error coins of all time...

Prices Realized In The August 2017 Denver ANA Heritage Auction

The following coins sold in the August 2 - 6, 2017 Denver ANA US Coins Signature Auction...

Prices Realized in the June 2017 Long Beach Expo Heritage Auction

The following coins sold in the June 8 - 11, 2017 Long Beach Expo US Coins Signature Auction...

Prices Realized In The April 2017 Central States Heritage Auction

The following coins sold in the April 26 - 30, 2017 CSNS US Coins Signature Auction...

Prices Realized In The February 2017 Long Beach Heritage Auction

The following coins sold in the February 2017 Long Beach Expo US Coins Signature Auction...

Prices Realized In The April 2017 Dallas Heritage Auction

The following coins sold in the April 2017 Dallas US Coins Signature Auction...

MINT ERRORS: Sales Prices for the Top 100

This is a list of the top 100 United States Mint Errors that have recently sold...

Prices Realized In The January 2017 FUN Heritage Auction

The following coins sold in the January 2017 FUN US Coins Signature Auction...

Prices Realized In The September 2016 Long Beach Expo Heritage Auction

The following coins sold in the 2016 September 7 - 11 Long Beach Expo US Coins Signature Auction...

Brockages on World Coins From The September 2016 Long Beach Expo Heritage Auction

The following coins sold in the 2016 September 8 - 13 Long Beach Expo World Coins & Ancient Coins Signature Auction...

Prices Realized In The June 2016 Long Beach Expo Heritage Auction

The following coins sold in the June 8 - 13, 2016 Long Beach Expo US Coins Signature Auction #1236...

Prices Realized in the August 2016 ANA Heritage Auction

The following coins sold in the 2016 August 10 - 15 ANA US Coins Signature Auction - Anaheim #1238...

NGC Certifies Unique Pair of Proof Quarters Struck on a Silver Barber Quarter and a Silver Canadian Quarter

Proof coins are struck by technicians who hand feed the blanks into special presses...

Prices Realized In The 2016 Central States Heritage Auction

The following coins were in the 2016 April 27 - May 2 CSNS US Coins Signature Auction - Chicago #1234...

Error Coins This Summer of 2016

Error Coins in the Numismatic Market have been really heating up...

1943-S Bronze Cent, Second-Finest Known, AU58 From the Bob Simpson Collection Sells For $282,000.00

The sale of off-metal error 1943 bronze and 1944 steel cents in our recently concluded FUN Signature (Heritage, 1/2016) was definitely one for the record books...

Prices Realized In The February 2016 Long Beach Expo Heritage Auction

The following coins were in the February 2016 Long Beach Expo Signature US Coin Auction #1232...

Prices Realized In The March 2016 Dallas ANA Expo Heritage Auction

The following coins were in the 2016 March 3 - 6 ANA US Coins Signature Auction - Dallas #1233...

Mint Errors Featured In The Upcoming Central States Heritage Auction

The following coins are featured in the 2016 April 27 - May 2 CSNS US Coins Signature Auction - Chicago #1234...

Prices Realized In The January 2016 FUN Heritage Auction

The following coins were in the 2016 January FUN US Coins Signature Auction - Tampa #1231...

Upcoming 2016 Numismatic Error Coin Market

Prices are just starting to move upward again as it appears based on recent auctions...

Mint Errors Featured In The Upcoming February 2016 Long Beach Expo Heritage Auction

The following coins are featured in the upcoming February 2016 Long Beach Expo Signature US Coin Auction #1232...

MINT ERRORS: Sales Prices for the Top 100

This is a list of the top 100 United States Mint Errors that have recently sold...

Jim's Coins Error Auctions

Auction J-48 Closes November 30, 2011…

U.S. Mint Clarifies Ownership Of Error Coins

Tom Jurkowsky, director of the U.S. Mint's Office of Public Affairs, issued a statement clarifying the Mint's position that error coins leaving Mint legitimately are legal to own...

Former U.S. Mint Police Officer Admits Theft Of $2.4 Million In Error Coins

A former U.S. Mint Police Office has plead guilty to stealing $2.4 million worth of error coins...

In Memoriam: Allan Levy

Allan Levy was a specialist in Mint and Currency Errors for over 25 years...

USA Coin Album: It's An Error To Call A Variety An Error

The simplest distinction is that a mint error is a random occurrence...

Prices Realized In The April 2011 Rosemont CSNS Heritage Auction

The following coins were in the April 2011 Rosemont CSNS Signature & Platinum Night US Coin Auction #1154 and Signature Currency Auction #3513...

Mint Errors Featured In The Upcoming June 2011 Long Beach Heritage Auction

The following coins are in the upcoming June 2011 Long Beach Signature US Coin Auction #1156...

PCGS Certifies 1905 Indian Cent Struck On A $2½ Gold Planchet

Exactly five Indian cents are known on gold planchets...

Prices Realized in the February 2011 Long Beach Heritage Auction

The following coins were in the February 2011 Long Beach Signature US Coin Auction #1152...

Prices Realized in the 2011 Sacramento ANA Heritage Auction

The following coins were in the March 2011 Sacramento Signature ANA US Coin Auction #1153...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 10/1/10 to 12/31/10...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 10/1/10 to 12/31/10...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 10/1/10 to 12/31/10...

Wisconsin Quarter "Extra Leaves"

Some recent sales of Wisconsin Quarter "Extra Leaves" mint errors on eBay from 10/1/10 to 12/31/10...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 10/1/10 to 12/31/10...

Blank Planchet Sales

Some recent sales of Blank Planchets on eBay from 10/1/10 to 12/31/10...

Rotated Reverse Sales

Some recent sales of Rotated Reverses on eBay from 10/1/10 to 12/31/10...

Double Struck Double Dated Sales

Some recent sales of Double Struck Double Dated mint errors on eBay from 10/1/10 to 12/31/10...

Other Sales Worth Mentioning

Some recent sales on eBay from 10/1/10 to 12/31/10...

Counterfeit & Questionable Mint Error Sales

Some recent sales of counterfeit & questionable mint errors on eBay from 10/1/10 to 12/31/10...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 10/1/10 to 12/31/10...

Books on Foreign Errors

Here I will list error coin books from other nations outside US...

Summer 2010 & Current Error Market Conditions

We have made a very fair evaluation of the current Numismatic Error Market...

New Book: 100 Greatest US Error Coins

The newest entry in Whitman Publishing's 100 Greatest series is a landmark book for collectors of error coins...

Prices Realized in the 2010 Central States Heritage Auction

The following coins were in the April-May 2010 Milwaukee, WI CSNS US Coin Auction #1139...

Prices Realized in the 2010 Boston ANA Heritage Auction

The following coins were in the 2010 August Boston, MA Signature ANA Coin Auction #1143...

Prices Realized in the September 2010 Long Beach Heritage Auction

The following coins were in the September 2010 Long Beach, CA Signature US Coin Auction #1144...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 7/1/10 to 9/30/10...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 7/1/10 to 9/30/10...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 7/1/10 to 9/30/10...

Wisconsin Quarter "Extra Leaves"

Some recent sales of Wisconsin Quarter "Extra Leaves" mint errors on eBay from 7/1/10 to 9/30/10...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 7/1/10 to 9/30/10...

Blank Planchet Sales

Some recent sales of Blank Planchets on eBay from 7/1/10 to 9/30/10...

Rotated Reverse Sales

Some recent sales of Rotated Reverses on eBay from 7/1/10 to 9/30/10...

Double Struck Double Dated Sales

Some recent sales of Double Struck Double Dated mint errors on eBay from 7/1/10 to 9/30/10...

Other Sales Worth Mentioning

Some recent sales on eBay from 7/1/10 to 9/30/10...

Counterfeit & Questionable Mint Error Sales

Some recent sales of counterfeit & questionable mint errors on eBay from 7/1/10 to 9/30/10...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 7/1/10 to 9/30/10...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 4/1/10 to 6/30/10...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 4/1/10 to 6/30/10...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 4/1/10 to 6/30/10...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 4/1/10 to 6/30/10...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 4/1/10 to 6/30/10...

2 Feather Buffalo Nickel Sales

Some recent sales of 2 Feather Buffalo Nickels on eBay from 4/1/10 to 6/30/10...

Blank Planchet Sales

Some recent sales of Blank Planchets on eBay from 4/1/10 to 6/30/10...

Rotated Reverse Sales

Some recent sales of Rotated Reverses on eBay from 4/1/10 to 6/30/10...

Double Struck Double Dated Sales

Some recent sales of Double Struck Double Dated mint errors on eBay from 4/1/10 to 6/30/10...

Other Sales Worth Mentioning

Some recent sales on eBay from 4/1/10 to 6/30/10...

Counterfeit & Questionable Mint Error Sales

Some recent sales of counterfeit & questionable mint errors on eBay from 4/1/10 to 6/30/10...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 4/1/10 to 6/30/10...

NGC Certifies A 1928 Standing Liberty Quarter Struck On A Cent Planchet

This extremely rare U.S. off-metal is valued at six-figures...

Mark Lighterman's Recovered Mint Errors

Here are some photos of the spectacular major mint errors recently recovered...

World Paper Money Errors

Zyrus Press publishes a new book on World Paper Money Errors...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 1/1/10 to 3/31/10...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 1/1/10 to 3/31/10...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 1/1/10 to 3/31/10...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 1/1/10 to 3/31/10...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 1/1/10 to 3/31/10...

2 Feather Buffalo Nickel Sales

Some recent sales of 2 Feather Buffalo Nickels on eBay from 1/1/10 to 3/31/10...

Blank Planchet Sales

Some recent sales of Blank Planchets on eBay from 1/1/10 to 3/31/10...

Rotated Reverse Sales

Some recent sales of Rotated Reverses on eBay from 1/1/10 to 3/31/10...

Double Struck Double Dated Sales

Some recent sales of Double Struck Double Dated mint errors on eBay from 1/1/10 to 3/31/10...

Other Sales Worth Mentioning

Some recent sales on eBay from 1/1/10 to 3/31/10...

Counterfeit & Questionable Mint Error Sales

Some recent sales of counterfeit & questionable mint errors on eBay from 1/1/10 to 3/31/10...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 1/1/10 to 3/31/10...

Prices Realized in the March 2010 Fort Worth, TX Heritage Auction

The following coins were featured in the March 2010 Fort Worth, TX Signature ANA US Coin Auction #1138...

Mint Errors Featured in the 2010 Central States Heritage Auction

The following coins are in the upcoming April-May 2010 Milwaukee, WI CSNS US Coin Auction #1139...

Prices Realized in February 2010 Long Beach Heritage Auction

The following coins were featured in the February 2010 Long Beach, CA Signature US Coin Auction #1137...

Prices Realized in January 2010 FUN Heritage Auction

The following coins were featured in the January 2010 Orlando, FL FUN US Coin Auction #1136...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 10/1/09 to 12/31/09...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 10/1/09 to 12/31/09...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 10/1/09 to 12/31/09...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 10/1/09 to 12/31/09...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 10/1/09 to 12/31/09...

2 Feather Buffalo Nickel Sales

Some recent sales of 2 Feather Buffalo Nickels on eBay from 7/1/09 to 12/31/09...

Blank Planchet Sales

Some recent sales of Blank Planchets on eBay from 7/1/09 to 12/31/09...

Rotated Reverse Sales

Some recent sales of Rotated Reverses on eBay from 7/1/09 to 12/31/09...

Double Struck Double Dated Sales

Some recent sales of Double Struck Double Dated mint errors on eBay from 7/1/09 to 12/31/09...

Other Sales Worth Mentioning

Some recent sales on eBay from 6/1/09 to 12/31/09...

Counterfeit & Questionable Mint Error Sales

Some recent sales of counterfeit & questionable mint errors on eBay from 7/1/09 to 12/31/09...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 10/1/09 to 12/31/09...

Misdated Presidential Dollar Excites Error Collectors

This is the first time that the wrong date has been reported on an edge-lettered US dollar...

Stolen: 1922 $20 St. Gaudens Die Adjustment Strike

This mint error was recently stolen...

Jim's Coins Error Auctions

MAIL BID SALE #37 CLOSES JANUARY 31, 2010...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 7/1/09 to 9/30/09...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 7/1/09 to 9/30/09...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 7/1/09 to 9/30/09...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 7/1/09 to 9/30/09...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 7/1/09 to 9/30/09...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 7/1/09 to 9/30/09...

Off-Metal Mint Errors

This list of known off-metal mint errors was compiled by Saul Teichman of uspatterns.com...

2009 Los Angeles ANA Photos

Here is a series of photos taken at the 2009 Los Angeles ANA...

PNG Members Recover Coins From 2001 Theft

A dozen of the 44 U.S. error coins stolen from an Indiana motel room in 2001 have been recovered...

Here are the remaining mint errors that Mark Lighterman had stolen and have not been recovered...

A dozen of the 44 U.S. error coins stolen from an Indiana motel room in 2001 have been recovered...

Prices Realized In September 2009 Long Beach Heritage Auction

The following coins were featured in the 2009 September Long Beach, CA Signature US Coin Auction 1129...

Prices Realized In December 2009 Houston Heritage Auction

The following coins were featured in the 2009 December Houston, TX US Coin Auction #1132...

Mint Errors & Die Trials Featured In Upcoming FUN Heritage Auction

The following coins are featured in the upcoming 2010 January Orlando, FL FUN US Coin Auction #1136...

Highest Prices Realized for Currency Errors in Heritage Auctions

Here is a compilation of the highest prices realized for Currency Errors in Heritage Auctions...

Mint Errors Featured In September 2009 Long Beach Heritage Auction

The following coins were featured in the 2009 September Long Beach, CA Signature US Coin Auction 1129...

Prices Realized in July 2009 Summer FUN Heritage Auction

The following coins were featured in the 2009 July West Palm Beach, FL (Summer FUN) Signature US Coin Auction #1127...

Highest Prices Realized for Die Trials & Splashers in Heritage Auctions

Here is a compilation of the highest prices realized for Die Trials & Splashers in Heritage Auctions...

Mid-Summer 2009 & the ANA Convention

How the error market is doing...

Jim's Coins Error Auctions

MAIL BID SALE #35 CLOSES SEPTEMBER 30, 2009...

"World's Greatest Mint Errors" Wins NLG Award For Best World Coin Book Of 2009

Mike Byers, author of World's Greatest Mint Errors, was presented with the Numismatic Literary Guild (NLG) award...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 4/1/09 to 6/30/09...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 4/1/09 to 6/30/09...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 4/1/09 to 6/30/09...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 4/1/09 to 6/30/09...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 4/1/09 to 6/30/09...

2 Feather Buffalo Nickel Sales

Some recent sales of 2 Feather Buffalo Nickels on eBay from 1/1/09 to 6/30/09...

Blank Planchet Sales

Some recent sales of Blank Planchets on eBay from 1/1/09 to 6/30/09...

Rotated Reverse Sales

Some recent sales of Rotated Reverses on eBay from 1/1/09 to 6/30/09...

Double Struck Double Dated Sales

Some recent sales of Double Struck Double Dated mint errors on eBay from 1/1/09 to 6/30/09...

Counterfeit & Questionable Mint Error Sales

Some recent sales of counterfeit & questionable mint errors on eBay from 1/1/09 to 6/30/09...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 4/1/09 to 6/30/09...

Other Sales Worth Mentioning

Some recent sales on eBay from 1/1/09 to 6/30/09...

Prices Realized in August 2009 Los Angeles Heritage Auction

The following coins were featured in the 2009 August Los Angeles, CA US Coin Auction #1128...

World's Greatest Mint Errors Published

An enjoyable resource packed full of some of the most dramatic, rare and extraordinary mint errors...

Prices Realized in May 2009 Long Beach Heritage Auction

The following coins were featured in the May 2009 Long Beach, CA Signature US Coin Auction #1125 and Signature World & Ancient Coin Auction #3005...

Prices Realized in 2009 Central States Heritage Auction

The following coins were featured in the April-May 2009 Cincinnati, OH (CSNS) US Coin Auction #1124...

Prices Realized in February 2009 Long Beach Heritage Auction

The following coins were featured in the 2009 February Long Beach, CA Signature US Coin Auction #1122...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 1/1/09 to 3/31/09...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 1/1/09 to 3/31/09...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 1/1/09 to 3/31/09...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 1/1/09 to 3/31/09...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 1/1/09 to 3/31/09...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 1/1/09 to 3/31/09...

New From Krause Publications: Strike It Rich With Pocket Change...

This is the long awaited second edition to this Numismatic Literary Guild Award Winning book...

Mint Errors, Die Trials & Patterns in Long Beach Heritage Auction

The following coins were featured in the 2009 February Long Beach, CA Signature US Coin Auction #1122...

Prices Realized in FUN Heritage Auction

The following coins were featured in the 2009 January Orlando, FL FUN Auction #1121...

The FUN Convention: The error coin market as it looks today...

The FUN convention was much better than expected, especially for error coins...

1915 Panama-Pacific Half Dollar Struck in Gold Sells for $345,000 In Heritage Auction

These extremely rare patterns were clearly clandestine strikes, produced at the Philadelphia Mint before mintmark punches were applied to the working dies...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 10/1/08 to 12/31/08...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 10/1/08 to 12/31/08...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 10/1/08 to 12/31/08...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 10/1/08 to 12/31/08...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 10/1/08 to 12/31/08...

2 Feather Buffalo Nickel Sales

Some recent sales of 2 Feather Buffalo Nickels on eBay from 7/1/08 to 12/31/08...

Rotated Reverse Sales

Some recent sales of Rotated Reverse errors on eBay from 7/1/08 to 12/31/08...

Double Struck / Double Dated Sales

Some recent sales of Double Struck / Double Dated errors on eBay from 7/1/08 to 12/31/08...

Other Mint Error & Currency Error Sales

Some recent sales of Mint Errors & Currency Errors on eBay from 7/1/08 to 12/31/08...

Counterfeit & Questionable Mint Error Sales

Some recent sales of Counterfeit & Questionable Mint Errors on eBay from 7/1/08 to 12/31/08...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 10/1/08 to 12/31/08...

Jim's Coins Error Auctions

MAIL BID SALE #31 CLOSES FEBRUARY 1, 2009...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 7/1/08 to 9/30/08...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 7/1/08 to 9/30/08...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 7/1/08 to 9/30/08...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 7/1/08 to 9/30/08...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 7/1/08 to 9/30/08...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 7/1/08 to 9/30/08...

Minnesota Doubled Die Sales

Some recent sales of Minnesota Doubled Dies on eBay...

Jim's Coins Error Auctions

MAIL BID SALE #30 CLOSES NOVEMBER 30, 2008...

Prices Realized in Baltimore Heritage Galleries Auction

The following coins were in the 2008 July-August Baltimore, MD (ANA) US Coin Signature Auction #1114...

Prices Realized in Long Beach Heritage Galleries Auction

The following coins were in the 2008 September Long Beach, CA US Coin Signature Auction #1116...

Highest Prices Realized In Heritage Galleries Auctions

Here is a compilation of the highest prices realized for Mint Errors, Patterns and Die Trials in Heritage Galleries Auctions...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 4/1/08 to 6/30/08...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 4/1/08 to 6/30/08...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 4/1/08 to 6/30/08...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay from 4/1/08 to 6/30/08...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 4/1/08 to 6/30/08...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay from 4/1/08 to 6/30/08...

Other Mint Error Sales

Some recent sales of Mint Errors on eBay from 1/1/08 to 6/30/08...

PCGS Certifies Walking Lib 50¢ Double Struck 50% Off-Center On A Silver Quarter Planchet

This unique and spectacular Walking Liberty Half Dollar major mint error is among the rarest and most valuable U.S. mint errors known...

NGC Confirms Major Hub Variety of 2008-W Silver Eagles

NGC has confirmed that 2008-W Uncirculated Silver Eagles were struck with two different reverse types...

Mint Errors & Patterns Featured in Heritage Galleries Auction

The following coins are the upcoming 2008 July-August Baltimore, MD (ANA) US Coin Signature Auction #1114...

Prices Realized in Long Beach & West Palm Beach Heritage Galleries Auctions

The following coins were in the 2008 May Long Beach, CA Signature Auction #1108 and the 2008 June West Palm Beach, FL (Summer FUN) Signature Coin Auction #1110...

Jim's Coins Error Auctions

MAIL BID SALE #28 CLOSES JULY 31, 2008...

Prices Realized in Heritage Galleries Auction at Central States

The following coins were in the April 2008 Rosemont, IL (CSNS) Signature Coin Auction #1104...

Dual Dated Double Denomination Errors

There are approximately twenty examples known for all combined dates & denominations...

Washington Dollar Missing Edge Lettering Mint Errors

My numismatic adventure began on a Sunday evening in late February 2007...

1798 Large Cent First Strike Brockage Sells For $27,600

From the Heritage Galleries auction listing...

Triple Struck 1891 $5 NGC Proof 64

From the Heritage Galleries auction listing...

Prices Realized in Recent Heritage Galleries Auction in Long Beach

The following coins were in the 2008 February Long Beach, CA Signature Coin Auction #460...

Prices Realized in Recent Heritage Galleries Auction in Phoenix

The following coins were in the 2008 March Phoenix, AZ (ANA) Signature Auction #1102...

Mint Errors Featured in Heritage Galleries Auction at Central States

The following coins are in the April 2008 Rosemont, IL (CSNS) Signature Coin Auction #1104...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 1/1/08 to 3/31/08...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 1/1/08 to 3/31/08...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 1/1/08 to 3/31/08...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 1/1/08 to 3/31/08...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay...

Minnesota Doubled Die Sales

Some recent sales of Minnesota Doubled Dies on eBay...

The Only Known Certified Gold Die Cap

This is the only known obverse or reverse die cap struck in gold...

1969-S Lincoln Cent Doubled Die Sells For $126,500

From the Heritage Auction Listing...

Mint Errors Featured in Heritage Galleries Auction at FUN

The following coins were in the 2008 January Orlando, FL (FUN) Signature Coin Auction #454...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 10/01/07 to 12/31/07...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 10/01/07 to 12/31/07...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 10/01/07 to 12/31/07...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 10/01/07 to 12/31/07...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay...

Other Mint Error Sales

Some recent sales of mint errors on eBay...

Jim's Coins Error Auctions

MAIL BID SALE #25 CLOSES JANUARY 31, 2008...

PCGS Certifies Jefferson Dollars With Missing Edge Lettering

PCGS just certified a small group of Jefferson Dollars that are Missing the Edge Lettering...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 7/1/07 to 9/30/07...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 7/1/07 to 9/30/07...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 7/1/07 to 9/30/07...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 7/1/07 to 9/30/07...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay...

Minnesota & Oregon Doubled Dies

Some recent sales of Minnesota & Oregon Doubled Dies on eBay...

Overlooked Error Coin Series

How about collecting a very under-collected series that stand to have great growth potential...

Mint Error Collection Sold

Here is a selection of interesting items from this collection...

Jim's Coins Error Auctions

MAIL BID SALE #24 CLOSES NOVEMBER 30, 2007...

Prices Realized in Recent Heritage Auction

The following mint errors sold in the 2007 September Long Beach, CA Signature Coin Auction #446...

Jim's Coins Error Auctions

MAIL BID SALE #21 CLOSES OCTOBER 1, 2007...

World's Greatest Mint Errors

Coming soon, a new book by Mike Byers...

Off Center Mint Error Sales

Some recent sales of off-center mint errors on eBay from 4/1/07 to 6/30/07...

Double Denomination & Off Metal Mint Error Sales

Some recent sales of double denomination & off-metal mint errors on eBay from 4/1/07 to 6/30/07...

Clad Layer Split-Off Mint Error Sales

Some recent sales of clad layer split-off mint errors on eBay from 4/1/07 to 6/30/07...

Waffle Coin Sales

Some recent sales of Waffle Coins on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 4/1/07 to 6/30/07...

Presidential Dollar Mint Error Sales

Some recent sales of Presidential Dollar mint errors on eBay...

Other Mint Error Sales

Some recent sales of mint errors on eBay...

Are Error Coins Too Highly Priced?

Error coins have made great strides over the years in popularity and price gains...

"In God We Trust" Amendment Passes

The words "In God We Trust" may no longer appear on the edge of the coins...

Spectacular Mint Errors Featured in Upcoming Heritage Auction

The following coins are featured in the upcoming 2007 Milwaukee, WI (ANA) Signature Coin Auction #444...

Mint Errors, Die Trials & Mules: Prices Realized in Recent Heritage Auctions

The following coins sold in the 2007 January Orlando, FL (FUN) Signature Coin Auction #422, the 2007 ANA Charlotte National Money Show Auction, Presented by Robert Korver #432 and the 2007 St. Louis, MO (CSNS) Signature Coin Auction #434...

Washington Dollar Mint Error Introduction

The Washington Dollar Missing Edge Lettering is one of the most exciting mint errors to surface in the last ten years...

Inside Minting: 2007 George Washington Dollar Missing Edge Lettering and Other Errors

Aside from missing the edge lettering, other edge letter anomalies are being discovered...

Washington Dollar Mint Errors

The Washington Dollar Missing Edge Lettering is one of the most exciting mint errors to surface in the last ten years...

Director of U.S. Mint Autographs NGC Certified "Missing Edge Lettering" Presidential Dollar Mint Error

The Washington Dollar Missing Edge Lettering is one of the most exciting mint errors to surface in the last ten years...

Altered Washington Dollars Surface

Presidential Dollars are filed to resemble widely publicized Missing Edge Lettering examples...

PNG Experts Warn of Altered, No Edge-Lettering Dollars

The altered coins are deliberately machined down until the lettering on the edges disappears...

Missing Edge Lettering Mint Errors From Denver

The Washington Dollar Missing Edge Lettering is one of the most exciting mint errors to surface in the last ten years...

The NEW Washington Dollar Errors

Wow, talk about a HOT new subject...

Presidential Dollar Errors

These Washington dollar coins were immediately scrutinized by the error/variety collectors who search for the slightest die variance...

Washington Dollar Mint Errors Sales

The Washington Dollar Missing Edge Lettering is one of the most exciting mint errors to surface in the last ten years...

PCGS Certifies Presidential Dollar Blank Planchet with Edge Lettering

The first known lettered-edge, blank planchet Presidential dollar was discovered...

NGC Certifies Presidential Dollar With No Edge Lettering and Reverse Clad Layer Missing

This fantastic multiple error Washington Dollar was discovered...

Other Washington Dollar Mint Errors

The Washington Dollar Missing Edge Lettering is one of the most exciting mint errors to surface in the last ten years...

Population Reports & Estimates

There has been wide speculation regarding the total number of Washington Dollars that are missing the edge lettering...

Cap Bust Half Missing Edge Lettering

Here is a spectacular 200 year old Cap Bust Half Dollar with no edge lettering...

Off Center Errors

Some recent sales of off-center mint errors on eBay from 1/1/07 to 3/31/07...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay from 1/1/07 to 3/31/07...

Waffle Coins

Some recent sales of Waffle Coins on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 1/1/07 to 3/31/07...

Mint Errors on Doubled Dies

Some recent sales of mint errors on doubled dies on eBay from 1/1/07 to 3/31/07...

Spectacular Mint Errors Featured at Central States by Heritage Auction Galleries

The following mint errors are featured in the upcoming Heritage Auction Galleries 2007 St. Louis, MO (CSNS) Signature Coin Auction #434...

Unique 1866 $2½ Struck on 3 Cent Nickel Planchet Certified by NGC

It is one of two known U.S. Liberty gold coins struck on wrong planchets and certified by either NGC or PCGS as a mint error...

Mint Error Prices Realized in Heritage Galleries FUN Signature Coin Auction

The following mint errors sold in the 2007 Orlando, FL (FUN) Signature Coin Auction #422...

Off Center Errors

Some recent sales of off-center mint errors on eBay from 10/1/06 to 12/31/06...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay from 10/1/06 to 12/31/06...

Waffle Coins

Some recent sales of Waffle Coins on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 10/1/06 to 12/31/06...

Other Mint Error Sales

Some recent sales of mint errors on eBay from 7/1/06 to 12/31/06...

One-sided Doubling From Direct Die Contact: An Overview

Over a dozen different forms of raised, one-sided doubling are currently recognized...

2007 Looks Like A Happy, Happy New Year

By all the signs of the FUN Convention, error coins continue to be one of the hottest parts of the Numismatic market...

Spectacular Mint Errors Featured in Upcoming Heritage Galleries Auction

The following mint errors are featured in the upcoming Heritage Galleries 2007 Long Beach, CA Signature Coin Auction #430...

NGC Brings VarietyPlus Catalog Online

A comprehensive listing of all the variety coins currently attributed by NGC has been added to NGC's website...

A Study of World Mis-Struck Coins

This chart covers India striking errors through 1994...

Jim's Coins Error Auctions

MAIL BID SALE #18 CLOSES JANUARY 31, 2007...

Mike Byers' Catalog

Featuring a premier inventory with hundreds of rarities....

Off Center Errors

Some recent sales of off-center mint errors on eBay from 7/1/06 to 9/30/06...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay from 7/1/06 to 9/30/06...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 7/1/06 to 9/30/06...

Other Mint Error Sales

Some recent sales of mint errors on eBay from 7/1/06 to 9/30/06...

Radically Misaligned Die Clashes in Recent Lincoln Cents

One of the more common mishaps to plague coinage presses since their very inception is "clashed dies"...

A Study of World Mis-Struck Coins

This chart covers Australian striking errors from 1944 to 1995...

Spectacular Mint Errors Sold In Recent Heritage Galleries Auctions

The following mint errors sold in recent Heritage Galleries Auctions in Denver and Long Beach...

NGC Certifies 1804 $2½ Capped Bust Double Struck First Strike Off-Center

All major mint errors on U.S. Gold coins are very rare...

Off Center Errors

Some recent sales of off-center mint errors on eBay from 4/1/06 to 6/30/06...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay from 4/1/06 to 6/30/06...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 4/1/06 to 6/30/06...

Other Mint Error Sales

Some recent sales of mint errors on eBay from 4/1/06 to 6/30/06...

A Study of World Mis-Struck Coins

This chart covers Mexican striking errors from 1536 to 1991...

"Invisible Strike" in a West Virginia Quarter

An invisible strike occurs when the dies are out of adjustment...

Is the Error Coin Market Taking a Breather?

The prices are NOT going down, but are staying stable at their current heights...

Spectacular Mint Errors Featured in Upcoming Heritage Galleries Auction

The following mint errors are featured in the upcoming Heritage Galleries August 2006 Denver, CO Signature & Platinum Night Auction #414...

Jim's Coins Error Auctions

MAIL BID SALE #15 CLOSES JULY 31, 2006...

Spectacular Ike Dollar Off-Metal Collection

These are the ultimate off-metals that are coveted by serious collectors of major mint errors...

1806 $5 Capped Bust Struck Four Times

This discovery coin is a significant numismatic rarity...

Cent/Dime Mule Sold for $138,000 in Heritage Auction at Central States

This incredible error somehow escaped the scrutiny of Mint employees...

Jim's Coins Error Auctions

MAIL BID SALE #14 CLOSES MAY 31, 2006...

NGC Certifies Double Struck Carson City Morgan Dollar

This is the most significant error coin that NGC has seen in a GSA holder...

1965 Kennedy Half Dollar Struck on an Ultra-Thin, Low-Density Planchet

NGC had labeled it as having been struck on "10c thickness stock"...

Off Center Errors

Some recent sales of off-center mint errors on eBay from 1/1/06 to 3/31/06...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay from 1/1/06 to 3/31/06...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 1/1/06 to 3/31/06...

Banana Note Sells For $25,300

This colorful error is commonly referred by collectors in the numismatic fraternity as "The Del Monte Note"...

1822 Error Quarter Brings $195,500 in Heritage Palm Beach Auction

Apparently the Finest Known of this extremely popular variety...

Unique Errors Featured in Upcoming Heritage Auction at Central States

From the Heritage Galleries Auction Listings...

A Study of World Mis-Struck Coins

This chart covers German striking errors from 1790 to 1990...

Jim's Coins Error Auctions

MAIL BID SALE #13 CLOSES MARCH 31, 2006...

January 2006 Mint Error & Die Trial Auction Prices Realized

The prices were extremely strong as mint errors continue to bring record prices...

Jim's Coins Error Auctions

MAIL BID SALE #12 CLOSES JANUARY 31, 2006...

Off Center Errors

Some recent sales of off-center mint errors on eBay from 10/1/05 to 12/31/05...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay from 10/1/05 to 12/31/05...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay from 10/1/05 to 12/31/05...

Other Mint Error Sales

Some recent sales of mint errors on eBay from 10/1/05 to 12/31/05...

A Study of World Mis-Struck Coins

This chart covers Canadian striking errors from 1740 to 1997...

Foreign Coinage Production Figures

An expansive document detailing mintages of foreign coinage struck by the US Mint...

Mint Errors and Die Trials Bring Record Prices in 2006 FUN Heritage Auction

From the Heritage Galleries 2006 January Orlando, FL (FUN) Signature Auction listings...

Mike Byers' Catalog

Featuring a multi-million dollar inventory with hundreds of rarities....

Big Expectations for 2006

2006 is upon us, expect BIG things from Errors...

Jim's Coins Error Auctions

MAIL BID SALE #11 CLOSES NOVEMBER 30, 2005...

Double Struck 4 Pence Lord Baltimore Piece Sold For $40,250 In Heritage Auction

Not only is this remarkable example important because of its condition, but also because it is fully double struck...

Berlin Mint Video

Here is a 15 video from the Berlin Mint in Germany as the new 2 Euro dies and coinage are produced...

$80 Nickel Sells for $264,500 in Heritage Auction

This is one of the rarest and most popular 20th century error coins...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay...

Clad Layer Split Off Errors

Some recent sales of clad layer split off mint errors on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay...

Waffle Coins

Some recent sales of Waffle Coins on eBay...

A Study of World Mis-Struck Coins

This chart covers English striking errors from 1600 to 1995...

Jim's Coins Error Auctions

MAIL BID SALE #10 CLOSES SEPTEMBER 30, 2005...

1975 Catalog & Price List

A 3 decade old mint error catalog and price list have been found...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay...

Clad Layer Split Off Errors

Some recent sales of clad layer split off mint errors on eBay...

Buffalo Nickel "Speared Bison" & Wisconsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Wisconsin Quarter "Extra Leaves" mint errors on eBay...

How HOT is the error coin market?

Prices are rising so fast we can hardly keep up with it...

Canadian on Foreign Overstrikes

A collection of Canadian mint errors...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay...

Clad Layer Split Off Errors

Some recent sales of clad layer split off mint errors on eBay...

1891 $5 Triple Struck Proof 64 NGC Mint Error Offered in Heritage Long Beach Signature Sale

This is an amazing Proof half eagle that was triple struck with rotation between strikes on the reverse...

Double Struck 1800 $10 Eagle Featured in Upcoming Heritage Galleries Auction

Only 5,999 pieces were struck of the 1800 ten dollar, making it a scarce date among early gold coins...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay...

Clad Layer Split Off Errors

Some recent sales of clad layer split off mint errors on eBay...

Insurance Considerations

Insurance carriers will vary throughout the World on the amount they insure and the contents of a single separate safe...

Unique NGC Set of Paraguay Overstrikes

Nineteenth century Paraguay patterns that were overstruck on previously struck gold, silver and copper coins...

Double Struck $2 ½ Indian Sells for $66,125 at FUN in Heritage Galleries Auction

This dramatic and unique double struck $2 ½ Indian set a record price for a $2 ½ Indian Gold mint error...

Off Metal Errors

Some recent sales of off-metal mint errors on eBay...

Heritage to Auction Part Two of the Larry Rausch Collection of Error Coins at FUN 2005

Many collectors search for years for the kinds of dramatic errors seen in this collection without much success...

Around The World - Updating Activity In & Around Error World

Error World Groups continue the steady growth and coin collecting is still a hot topic...

Pair of 1806 Draped Bust Quarter Obverse & Reverse Brockages

These two mirror brockages of 1806 Draped Bust Quarters are spectacular and are among the rarest U.S. type errors...

Mike Byers' Catalog

Featuring a multi-million dollar inventory with hundreds of rarities....

A Report on the ANA and Mint Errors

Mint errors continue to be one of the strongest segments of numismatics today...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Around The World - Updating Activity In & Around Error World

Error World Groups continue the steady growth and coin collecting is still a hot topic...

The 2004 ANA Convention And The Error Coin Market

Error coins sales are stronger than ever...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Around The World - Updating Activity In & Around Error World

Error World Groups continue the steady growth and coin collecting is still a hot topic...

Thoughts on Coin Certification

Have grading services enhanced or detracted from our collecting experience...

Safe Locks

Without a good high security lock you do not have maximum security...

Do You Have The Right Fire Protection?

When one starts to consider an adequate safe to protect one's assets...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Around The World - Updating Activity In & Around Error World

Error World Groups continue the steady growth we are all familiar with...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Around The World - Updating Activity In & Around Error World

Error World Groups continue the steady growth we are all familiar with...

World Mints Deface Coins With "Waffle Designs"

Mints around the world have been cancelling (defacing) coins for many years...

1904 $20 Liberty Triple Struck Sells For Over $100,000

This unique U.S. Gold major mint error recently sold for a record price of $102,500...

PCGS Certifies Rare U.S. Silver Dollar Pattern as a Mint Error

Major Mint Errors on Proof U.S. Patterns are very rare...

2004 FUN Show and the Error Coin Market

By all reports it was the BEST show in 20 years...

Mint Error News Magazine Contest Winner

The winner of the Mint Error News Magazine contest for the best article submitted is...

Numismatic Musings

Thoughts from a curious mind...

Photos From The Mint

I recently toured the U.S. Mint in Philadelphia...

Mike Byers' Catalog

Featuring almost 400 U.S. & World Major Mint Errors and Die Trials with a value of nearly $4 million...

Discount Coupons for 2004

The coupons that Mike Byers, Tim Bullard and Allan Levy have...

A New Book By Mike Byers

Coming Soon: Mint Error Guide...

Off Center Errors

Some recent sales of off-center mint errors on eBay...

Around The World - Updating Activity In & Around Error World

As the end of the year approaches, it has been very busy throughout EW Groups...

U.S. Mint Uses Schuler Presses

Recently, the United States Mint has been using Schuler presses to strike our coinage...

Triple Struck $3 Sells for $41,400 in Superior Auction

Mike Byers of Byers Numismatic Corp. purchased an extremely rare major mint error...

Mint Error Dealer Pete Bishal Passed Away

A true numismatist, he spent his life giving to the hobby he loved...

Off-Center Errors

Some recent sales of off-center mint errors on eBay...

V Nickels On Cent Planchets

I have recorded the following examples thus far...

Error Oddity Coins - What Are They?

The first step in understanding Error-Oddity coins is to know what they are...

NGC Certifies Unique Martha Washington Cent Test Piece

This is a Martha Washington test piece struck in 1999/2000...

Unique Gold Brockage Sells For Record Price of $75,000

This is the only known full brockage on any U.S. Gold Coin of any denomination...

How To Use The Auctions Without Getting Skinned

Be a wise bidder and you will almost always be a satisfied buyer...

Humidity - The Silent Attacker

It is well known that humidity affects the condition of any item...

"Around The World"

Updating activity in and around Error World Groups...

85 Reasons to Collect Error Coins

All answers have been posted by fellow error coin collectors...

Martha Washington Dime Sells For $51,750

To date, this is the only known Martha Washington Test Piece on a Dime blank...

Why Do You Collect Error Coins?

There are almost as many different reasons as there are error coin collectors...

Off-Center Errors

Some recent sales of off-center mint errors on eBay...

Coin Collecting and "Change"

If you've been thinking of joining a club...

ANA Gets Serious About Quality Of Third Party Graders

After 30 years of collector frustration, an attempt at correcting this problem may be at hand...

Another Proof Sac Dollar Die Crack

There are now two different obverse die cracks...

The US Mint Installs Equipment To Destroy Errors

This is big news in the mint error hobby...

Foreigners in the Mint

The United States Mint struck coins for foreign countries starting in 1833...

What The Numbers Mean

In the study of mint errors and varieties, identification numbers are even more abundant than with the regular segment of the hobby...

Incomplete Planchets

There are several types of incomplete planchets...

What Are Doubled Dies?

A concise description of how doubled dies occur...

Error World Club

Error World Club is based upon the idea that an internet club can be better than the on-line standard...

Chile 10 Pesos Double Struck on Feeder Finger

This is one of the most incredible and spectacular Major Mint Errors that has ever surfaced...

Minterrornews.com welcomes Error World Club As Sponsor

Minterrornews.com welcomes Error World Club as a new sponsor to the website...

1865 2¢ Obverse Die Cap & Brockage Sells For Record Price

This spectacular 2¢ Die Cap traded hands three times at the Long Beach Coin Show last week...

Al's Perspective on 2002 & 2003 Errors...

I recently wrote about why there were not any 2002 errors being offered for sale...

Minterrornews.com Announces A New Price Guide Section

Check it out...

1943-D Copper Cent Brings $212,750 In Goldberg's Auction

Here are the prices realized...

"Shrunken Coins" and How to Recognize Them

A significant number of these are now in the hands of experimenters and collectors throughout the world...

Where Have All of the Coins Gone?

The U.S. produced its first "coin" in 1792 and has been pumping them out non-stop for the next 200+ years...

Is a "Double Error" Large Cent More Valuable?

How rare is this "double error" large cent in comparison to "single error" off center large cents...

Minterrornews.com Announces New Magazine

It's totally free! It will have articles, a price guide, features, discoveries, discount coupons...

The Real Story Behind The Feeder Finger Find

...

Superior Galleries Auction Features Triple Struck $20 Liberty & Other Major Mint Errors

Featured are many major mint errors including...

(2) 1943 Copper Cents Featured In Goldberg Auction

February 24 & 25, 2003 The Benson Collection Part III...

Pattern or Mint Error?

This piece is actually one of several pieces listed in the pattern references that is, in reality, a mint error...

Wow, Error Prices Have Changed

I remember buying my first off-center penny for 35 cents in 1973...

Where are all those 2002 errors?

A 1¢ 2002-D 50% O/C sold on eBay for $705...

Message From The Editors

We encourage all collectors and dealers to submit their articles, discoveries and scans of their major mint errors...

Clad Missing State Quarters

Ever since I purchased a computer a few years ago and spotted my first clad missing state quarter...

Eureka Trading Systems Introduces Error Section

Error section added to this brand new site...

CoinFacts.com: A Great Error Coin Resource

Their error coin section contains explanations and illustrations...

Uspatterns.com Announces Mint Error Section

Coins thought to be patterns but are actually mint errors instead...

Specific Gravity

Many people believe that this test is too complicated and/or requires costly equipment to be properly performed. This is not the case...

Jim Halperin's Collection of Fraser Plasters

There are a few Fraser plasters that are included in his private collection...

Mint Error Coin Chronicles: Rotated Dies Error

The orientation of the two sides of a coin in relation to one another should be consistent; when it's not, this error occurs...

Flying With Your Coins!

Air travel is the fastest method across the USA with coins and here are a few suggestions for your journey...

Unique Branch Mint Proof 1891-O Seated Liberty Dime

This is the only known 1891-O Seated Liberty Dime struck in PROOF...

Unique Pair of Judd #2210 Martha Washington 5¢ Test Pieces

Newly redesigned Martha Washington dies were used to strike test pieces at the United States Mint...

The Rarest Eisenhower Dollars Known

A small group of Eisenhower dollars are in an elite class of their own...

A Collection of Flying Eagle & Indian Cent Mint Errors

Charmy Harker "The Penny Lady®" wanted to share her collection of Flying Eagle and Indian Cent Mint Errors...

Collecting Double Struck Error Coins

A favorite of every error coin collector is to have a double struck error coin in their collection...

Major Errors Struck by Private U.S. Mints

Major mint errors from silver rounds to gambling tokens are very popular and are eagerly sought out by collectors...

1932 Laura Gardin Fraser Quarter Plaster and Original Photograph

This 1932 quarter reverse plaster model for Laura Gardin Fraser's winning 1932 Washington Quarter submission is an amazing and significant discovery...

Unique Peace Dollar Splasher & Plaster by Anthony de Francisci

Quite simply there are no other known splashers or plaster models of the de Francisci 1921 Peace Dollar...

The "Libertas Americana" Metallurgical Trial Pieces

These pieces are fascinating pieces of history and this article attempts to list a complete census of the known specimens...

Unique Mated Pair of Proof Ike Dollars Struck Off-Center on 1¢ Planchets

This unique proof mated pair of Eisenhower Dollars was sitting in an old-time collection for decades...

Unique Proof Kennedy Half Bonded Pair With Struck In Copper Planchet

This bonded pair of a Proof Kennedy Half and a 1.6 gram Copper planchet is unique and visually breathtaking...

A Dramatic Struck Thru Error - The "1861 Buffalo" Quarter

This "1861 Buffalo" Quarter is an especially appealing struck-thru grease Quarter, both for its eye appeal and subject matter...

Unique Proof Ike Dollar Struck on Silver Clad Layer

This 1976-S Proof Type 1 Eisenhower Dollar is unique among Ikes, and all U.S. Dollars, of all years and types...

Unique 1972-S Lincoln Cent on Struck Silver Dime

Although this was an intentionally struck mint error, it is unique and very dramatic...

Two Incredible Kennedy Half Mint Errors

A reader of Mint Error News who collects rare proof U.S. mint errors wanted to share two special Kennedy Half mint errors from his collection...

Unique 1972 Eisenhower Dollar Overstruck Twice With 1972 Cent Dies

One of our readers wanted to share his amazing Eisenhower Dollar mint error...

Error Coin Collection

One of our readers wanted to share his collection of error coins and numismatic rarities...

A Cosmic Error You Have To Look To The Stars For!

To this day, not very many people are even aware of this error...

Bicentennial Ike Dollar Struck on 40% Silver Planchet

This is an amazing and extremely rare Eisenhower Dollar off-metal...

Struck Thru Error Coins

Major struck thru error coins are very interesting and extremely collectable...

1973-S Blue Ike Struck on Clad Planchet

This is an amazing and extremely rare Eisenhower Dollar off-metal...

Unique Broadstruck 1906-D $20 Liberty Gold Double Eagle

This is the only known United States $20 Gold Piece that was broadstruck out of the collar...

Collecting Carson City Errors

My Journey started as a young man where I collected coins and enjoyed the hunt more than anything...

A Closer Look: The GSA 1882 Carson City Morgan Dollar Off Center

There is more than meets the eye when looking at the 1882-CC off-center GSA Morgan dollar...

Unique Double Eagle Reverse Hub Trial in Lead

This is a unique $20 Double Eagle reverse hub trial attributed to 1857...

Lincoln Dime Mule Census

These are particularly eye appealing and generally it appears that the smaller dime size die does not have any cupping effect on the struck coin...

Ask Dave

Dave Camire, NCS President, NGC Finalizer and NGC Mint Error Expert answers your numismatic questions...

Eye Appeal And Error Coins

Error coin collectors look at eye appeal as the most important factor in evaluating a coin, even more so than the grade...

Analyzing A Fake Die Cap

The following is an interaction that I had with one of my customers who thought they had a genuine mint error...

Unique Triple Struck Flipover Peru Gold 8 Escudos

This 1741 Peru Gold 8 Escudos is a very rare South American gold coin...

Extremely Rare Lincoln Cent Wheat Ears Struck Off-Center on Silver Dime Planchet

This is an extremely rare off-center Silver Cent...

Pattern "Struck-Overs"

Pattern coins, by definition, are experimental pieces created to test new designs, different metal alloys...

The Errors All Around Us

In coin collecting circles we often see a lot of emphasis placed on searching for coins of certain dates...

World Error Coins and the PDS Error System

The (Planchet, Die, Striking) PDS error classification system is simple and easy to remember for collectors..

A Collection of Romanian Error Coins

This is a journey through the modern Romanian history illustrated by my error coins from this nation...

1875-S 20 Cent with Reeded Edge

It is possible that it was a mint error and somehow was struck with a reeded edge at the San Francisco Mint...

Detecting Alterations to Coins to Appear as Errors

There are many signs illustrating why this coin is yet another altered coin meant to fool collectors...

The Subjectivity of Pricing

The pricing of patterns is very subjective...

Collecting Clipped Planchet Error Coins

Error collectors usually end up collecting different types of clip error coins...

PCGS Certifies a Cent Bonded to a Magnetic Screw

This is one of only two known Lincoln cents that were bonded with a magnetic screw...

Mint Error Coin Chronicles: Broadstrikes

Coins that lose their collars end up running loose beyond their boundaries...

Proof Ike Dollar Double Struck on Kennedy Half Dollar Planchet

This is one of the most spectacular Proof Ike Dollar Mint Errors available today...

Unique Proof 1973-S Kennedy Half Dollar Double Struck on Washington Quarter Double Denomination

It is a unique double struck double denomination and belongs in a world-class mint error collection...

Proof Ike Dollar Struck on Clad Dime Planchet

These are very rare and highly prized by Ike Dollar collectors and mint error collectors...

Counterfeit Detection: Spark-Erosion 1874 Three Cent Nickel Die Trial

Three Cent nickels were struck in 75% copper and 25% nickel with a silver-gray color, but the coin submitted to NGC appeared to be made entirely out of copper...

Mushroom Error Coins

These coins are larger than a normal size coin with some examples that have expanded to a huge size...

1968-D Penny Struck on a Silver Dime Planchet

This is the rarest type of U.S. transitional off metal mint error...

Mint Error Coin Chronicles: Partial Collars

A Partial Collar error occurs when there is a malfunction of the striking press...

1873 Closed 3 $5 Unique Specimen with Experimental Finish

This unique 1873 $5 Closed 3 Specimen strike has an experimental finish and is a hybrid between a proof and a mint state coin...

Proof 197X-S Ike Dollar Double Struck on 2 gram Aluminum Shell Gas Token

This is an amazing and spectacular proof major mint error...

Mint Error Coin Chronicles: Transitional Errors

Errors where a previous year's planchet was used are some of the most exciting in all numismatics...

Struck Thru Cloth Error Coins

Coins have been struck thru all different types of materials and objects leaving an impression of the item in the coin...

Hawaiian Mint King Kalakua 1883-1983 Kala Dala Proof Struck on Scrap

The proof error coins shown here were broadstruck on an off metal piece of scrap...

USPatterns.com - Mint Errors Mistaken For Patterns

In many cases, the error pieces listed are rarer and more valuable than the die trials they are confused with...

David Camire Visiting Mints Around The World

David has visited all three US mints (numerous times) and continues to add to his world mint visits...

USPatterns.com - Pattern Mint Errors

Here are some examples of misstruck pattern pieces...

Collecting Ultra Modern Major Mint Error Coins, 2002 - Present

Collecting ultra modern mint error coins is fascinating because there are so many different designs and error types possible...

NGC Certifies 1943 Lincoln Cent Struck on Curacao 25 Centstukken Planchet

This world-class 1943 Lincoln Cent major mint error is many times rarer than the 1943 copper Cent...

Certified but Not Graded: Adjustment Strikes, Struck Thrus & Other Mint Errors

There are a few types of error coins that are eligible for NGC certification, but do not receive a grade...

Counterfeit Detection: 1942 Lincoln Cent Mint Error

What looks like a double strike will make you do a double take, but it's not real...

Counterfeit Detection: 1955 Doubled-Die Obverse Cent

This off-center coin proved too good to be true...

Extremely Rare "Peacock" Variant 150 Yuan 20oz Silver Coin

An exceptional and nearly flawless example of this important variant of the "Peacock" 150 Yuan...

Unique Standard Silver Dime Off-Metal Proof Pattern

This is a unique and spectacular mint error, a proof pattern off-metal...

Amazing 2016 Shield Cent Multiple Mint Error

This amazingly rare modern cent major error coin has so much going on...

Netherlands Silver 1/2 Ducaton Pattern in Proof

The only known proof of these ducaton coins are the gold ones...

Unique Pair of California Fractional Gold Clipped Planchets

This is the only known double clipped planchet on any fractional gold coin...

Unique 1977 Lincoln Cent Struck in Aluminum at The Philadelphia Mint

There are several possibilities as to how this unique Lincoln Cent was produced...

Liberty Seated Dime Struck Off-Center With Obverse Partial Brockage

This is an amazing and unique combination of major errors on a Seated Dime...

Extremely Rare $50 Gold Eagle Double Struck Partial Collar

Major Mint Errors on the 1oz Gold U.S. $50 American Eagle series are very rare...

Unique California Fractional Gold Incomplete Punched Planchet

A fascinating aspect of this mint error is that the partially punched planchet is octagonally shaped...

Spectacular State Quarter Die Cap

The die cap is so deep and the "exit strike" is at such an angle creating a shape like a baseball-cap...

Extremely Rare California Fractional Gold Overstrike

This is a unique 1863 California Fractional Gold 25¢ overstruck on a previously struck 1860/50 Gold 25¢...

Unique & Unlisted German 5 Mark Die Trial

This unique and unlisted Germany 5 Mark reverse trial strike is the adopted design in silver...

Unique American Bank Note Company El Salvador Stamp Printing Plate

It features a set of all four different denominations of stamps on the plate...

Extremely Rare Buffalo Nickel Off-Metal

This amazing fully lustrous Buffalo Nickel struck on an Argentina 10 Centavos planchet...

American Bank Note Company Experimental Stamp Printing Plate

This experimental stamp printing plate from the American Bank Note Company is one of only two known...

Official Royal Mint Plaster for the Great Britain 1983 One Pound

This is a fascinating official Royal Mint plaster that was designed for the reverse of the new Great Britain 1983 One Pound coin...

1938 New Rochelle Half Dollar PCGS Specimen 67+ CAC

This PCGS Specimen 67+ CAC is the second finest known...

1831 Proof Gold ½ Sovereign DOUBLE STRUCK

Interestingly, despite the high production standard for this Proof offering, its legends show faint traces of being double-struck...

Gold-Plated Brass Maple Leaf Die Trials in Lucite

This is a fascinating and historical set of Gold-Plated Brass Die Trials issued by the Royal Canadian Mint...

Double Struck 1904 $20 Liberty Rotated 180 Degrees in Collar

Major mint errors on U.S. gold coins are extremely rare...

Extremely Rare Bavarian Gold Service Medal

This is an amazing world-class numismatic treasure, combining several numismatic and historic factors...

Proof Kennedy Half Dollar Double Struck on a Gas Token

This is an amazing and spectacular proof major mint error...

Unique Double Denomination Kennedy Half Dollar on a Quarter

It is the only known Kennedy Half Dollar from 1965-1970 struck on a struck Quarter...

The Northern Nevada Dollar Error Gallery

We enjoy collecting dollar errors because with as many dollars as we buy and sell day in and day out errors in this series are still rarely seen...

Learn Grading: What Is a Mint Error?

This installment in the series covers mint errors that can occur when something goes wrong with a coin's planchet...

Off-Center Lincoln Cent With Retained Wire Bristle

The reverse of this 1998 way off center cent has a struck in and retained wire bristle...

Lincoln Cent Cancelled in India?

One of our readers found this interesting Lincoln Cent that has been cancelled with a unique pattern...

Pair of Ethiopia 10 Dollar Silvered Bronze Specimen Pattern Uniface Die Trials

They are a matched set of obverse and reverse uniface die trials from 1972...

Unique Canadian $20 Specimen Test Print

This incredible and unique test print is for the Canadian 1954 $20 face and back...

Unique Off-Metal Canadian Mint Error

This unique Canadian 50¢ dated 1970 is struck on a 72% silver and 28% copper off-metal planchet...

A Collection of India Patterns & Die Trials

I recently acquired this set of patterns & die trials of a rare Baroda Rupee...

Unique & Unrecorded Proof Great Britain 1/2 Sovereign Gilt Reverse Pattern

This is a unique and unrecorded proof gilt reverse pattern for the 1831 Great Britain William IV 1/2 Sovereign...

Uruguayan "Two Tailed" Dual Date, One Peso Mule

Major errors from Uruguay are nearly unheard of and this is the first mule error from this country I have ever seen...

NGC Certifies Canada $15 Struck on Gold Planchet in Custom Multi-Coin Holder

One of the four-known 1992 Canadian "Spirit of the Generations" Olympic silver coins to be struck in pure gold...

Pair of Gold Lincoln Medal Overstrikes Certified by NGC

This is a fascinating pair of gold overstruck coins with an enigmatic history and production...

PCGS Certifies German Gold Obverse Die Trial Strikes

It is amazing that after 500 years, this set of gold Die Trials remained together, intact and preserved in gem mint state condition...

Unique Ethiopia Double Struck Gold Mule

All gold mules are rare and this mule is unique for several reasons...

Unique Great Britain Queen Elizabeth II Crown Trial Strike

This is a unique Crown die trial strike (1957) for preparing the copper-nickel Crown for Queen Elizabeth II in 1960...

Belgium Silver 50 Centimes Mule

The reverse die is dated 1899 but was incorrectly muled with an obverse die dated 1907...

Lincoln Cent Double Denomination Mint Error

It is the first year that dimes were struck in the clad composition and this is in demand in the 11-cent series...

1900 Indian Head Cent Multi-Struck 20% Off-Center On A Silver Dime Planchet

This unique and spectacular mint error was intentionally struck at the U.S. Mint in Philadelphia...

1882 Shield Nickel Struck On A Cent Planchet

This Shield Nickel was struck on a bronze planchet that the U.S. Mint intended to use for the production of Indian Cents...

An Exciting Collection of Major Mint Error Coins

I wanted to share some exciting error coins with the readers of Mint Error News...

Unique Set of Mexico Proof Pattern Mint Errors

This is a unique, incredible and dramatic set of 5 proof pattern mint errors...

NGC Counterfeit Detection: 1954-D Quarter (Counterfeit Second Strike)

This coin is real, but the second strike error is not...

Unique Netherlands Gilt Cardboard Pattern

Most cardboard trials are struck on just one side, but this one is made like an actual coin...

Unique Mated Pair of U.S. Currency Errors

These $5 1950 notes stayed together during the entire printing and production process...

Unique Civil War Merchant Token Mule

This famous unique Civil War merchant token as been in some of the world's finest numismatic collections of Civil War tokens...

A Collection of Bicentennial Washington Quarter Mint Errors

I wanted to share some Bicentennial Washington Quarter Errors with the readers of Mint Error News...

Another "Off-Metal" World Coin Struck on a Different Country's Planchet

This type of major error is exceedingly rare, but in this case I consider it to be unique...

A Unique Great Britain Guinea/Sovereign Pattern

Recently surfaced after 200 years...

Washington Quarter Struck 70% Off Center on a Clad Layer Uniface Reverse

I bought this coin thinking that it was an off center statehood quarter that split after striking error...

2007-D SMS Dime Obverse Die Cap

In 2007 a batch of rare major error coins came out of the Denver mint...

A Unique Great Britain Mule

It is a proof-only date and even rarer as a mule with the threepence obverse...

Martha Washington Reverse Die Used To Strike 1 Cent Experimental Test Pieces For U.S. Judd #2180

There is only one other known Martha Washington Die in private hands...

More San Francisco Mint Off-Metal Errors

I wanted to share some more San Francisco Mint Off-Metal Errors with the readers of Mint Error News...

NGC Grades Mistakenly Released Reverse Proof Cent

The coin was not supposed to be available to the public until mid-April...

U.S. Lincoln Cent Overstruck by Bolivian Dies

A unique error that is both dual country and a double denomination...

PCGS Certifies Ike Dollar Struck Off-Center on Taiwan $1 Planchet

The coin was close to the size of a quarter but lacked the clad layers...

ICG Certifies 2019 Silver American Eagle Major Struck Thru

There is extended plastic free floating in the ICG custom slab...

A Collection of San Francisco Mint Off-Metal Errors

I wanted to share this group of San Francisco Mint Off-Metal Errors with the readers of Mint Error News...

NGC Certifies Unique Great Britain Proof Gold Pattern

This unique gold pattern portrays a new portrait of Queen Victoria on the obverse...

NGC Certifies Unique Pair of Lincoln Medal Die Trials

These Lincoln medals are uniface since each die was tested separately on a lead planchet...

U.S. Nickel Overstruck by Chilean 10 Pesos Dies

This error likely occurred when the nickel was tossed into a bin containing 10 pesos planchets at the Santiago mint...

Canadian Mint Errors

Here are some Canadian mint error that I wanted to share with the readers of Mint Error News Magazine...

A Collection of Euro Errors

One of our readers from the Netherlands wanted to share his collection of Euro mint errors...

Extremely Rare Buffalo Nickel on an Elliptical Planchet

There are only 2 known for the entire series from 1916 to 1938...

NGC Certifies Unique Argentina 8 Escudos Silver Die Trial

It is fascinating that this unique obverse silver die trial exists for the already excessively rare gold 8 Escudos...

PCGS Certifies 1875 20 Cent Die Trial

There are only 3 known die trials in the entire 20 Cent series...

Magnetic Screw Struck and Bonded onto Cent

I wanted to share this incredible mint error with the readers of Mint Error News...

Strike Clips

Among the different kinds of clipped coins is a rare type called a Strike Clip...

Legendary Off-Metal Error

Wartime demand for copper caused the U.S. Mint to change the composition of the Lincoln cent planchet in 1943...

A Collection of Russian Mint Errors

Mint error collector Alexander Filer from New Jersey wanted to share his incredible collection...

Argentina Striking Errors

Argentina provides us with two striking errors...

Martha Washington Obverse Die

Used to strike half dollar experimental test pieces for U.S. Judd #2131...

Unique Chilean Numismatic Rarities

This is a spectacular collection of Chilean unique numismatic rarities...

Mint Error News Special Section: An Incredible Collection of World Mint Errors

Jeff Ylitalo decided to share part of his fantastic world error collection...

Counterfeit Detection: Australia 1944 Florin Die Cap

The sharply defined reverse reveals this florin die cap to be counterfeit...

NGC Certifies Rare 1942 and 1943 Wrong-Planchet Cents

Two previously unknown 1943 "copper" cents and two other wrong-planchet errors were recently certified by NGC...

A Visit With Fred Weinberg

It is always a pleasure to visit Fred Weinberg in his office to conduct business...

What Are Struck-Throughs?

Struck-throughs range from very small to large...

Doubled Dies vs. Machine Doubling

The distinction between genuine die doubling and mechanical doubling can be subtle...

A Collection of State Quarters Struck on Elliptical Planchets

U.S. coins struck on elliptical planchets are scarce, making this an impressive collection...

Unique "Two Tailed" Off-Metal

This is one of two known U.S. or World Coins in numismatic history that were struck by either two obverse or two reverse dies and struck on an off-metal planchet...

Unique Double Struck Peace Dollar

Major mint errors in the U.S. Peace Dollar series are very rare...

NGC Certifies Colombia Pattern Oddity

NGC recently certified a 1918 10 Peso pattern struck over a US WWI-era pin...

Highest Prices Realized for World Mint Errors in Heritage Auctions

The following coins sold in past Heritage Auctions...

PCGS Certifies 1945 Netherlands East Indies Cent STRUCK IN GOLD At The U.S. Philadelphia Mint

This is a proof pattern gold striking of KM-316...

A Collection of American Eagle Errors

A reader of Mint Error News wanted to share his collection of rare American Eagle major mint errors...

Fred Weinberg's Price List of Major Mint Error Coins & Currency

Wholesale prices list of major mint error coins & currency...

Rare Mint Error Found on a 2015 Silver Eagle

A rare curved clip mint error is found on a 2015 American Silver Eagle bullion coin...

Undated Double Eagle Obverse Die Trial Judd-A1859-10, MS64 Unique Die Variant

This is a unique striking and the only splasher of the Type One twenty...

NGC Grades Dramatic Error 1986 Silver Eagle

A rare and prominent mint error was identified on a 1986 Silver Eagle that was found in a Mint-sealed box...

5 Crowns Struck In Gold

Only one was approved as a final production piece...

World Errors

It is the first euro/non-euro transitional error coin I have encountered...

Presentation Set of Federal Reserve Proofs

These Proofs were printed from the actual currency plates on to card stock...

World Errors

I wanted to share these world errors that I've recently purchased with the readers of Mint Error News Magazine...

Proof U.S. Quarter Struck Over Canadian Quarter

This is a dramatic mint error since it involves two different countries and 29 years between strikes...

Walking Liberty Half Dollar Off-Metals

This spectacular 1945 Walking Liberty Half Dollar was struck on a Dime planchet...

Variety vs. Mint Error

Are you confused about varieties and mint errors...

Proof Paper Impressions

These previously unknown examples of Proof Trial strikes were produced at the San Francisco Mint...

National Gold Bank Note Face Specimens

Here is a set of National Gold Bank Not Face Specimens from The Kiddler National Gold Bank of Boston...

1923 Peace Dollar Clipped Planchet GSA Soft Pack MS 64 NGC

It is exciting that this mint error is still in the U.S. Government GSA Soft Pack holder...

Small Dollars Missing Edge Lettering

A comprehensive photographic overview of small dollar coins exhibiting a very popular type of error...

2 Double Denomination National Bank Notes

Here are the finest known and unique pair of Double Denomination U.S. $20 & $10 National Bank Notes from 1882...

Five-Piece Set of No 'S' Proof Coins

This Five-Piece Set of No 'S' Proof Coins is featured in the upcoming 2010 April-May Milwaukee, WI CSNS US Coin Auction #1139...

NGC Error Coin Gallery

State Quarter mint errors are very popular with collectors...

1964 Double Denomination Errors

Double Denomination U.S. mint errors are very popular and in great demand by mint error collectors...

NGC Certifies Standing Liberty Quarter Struck On A Cent Planchet

Major Standing Liberty Quarter errors are extremely rare...

PCGS Certifies Type 2 $1 Gold Piece Full Brockage Reverse

This unbelievable U.S. Gold Brockage recently surfaced at the 2009 ANA held in Los Angeles...

Having Residual Concerns About Residue?

A closer look at "residue" on the surface of coins...

Indian Cent Mint Error Collection

NGC recently certified Xan Chamberlain's personal collection of Indian Head Cent errors...

How To Tell A Premium Off-Metal Mint Error

What can determine an average off-metal error to a premium error...

Historical Test Strike From Sweden

This object is a part of my collection of Swedish pattern coins...

1971 Swedish Bonded One Kronas

To this day, this is the only known bonded Swedish coin...

Canadian Mint Errors

I collect major Canadian mint errors and would like the readers of Mint Error News Magazine to enjoy them too...

Presenting The World's Most Valuable Major Mint Error!

PCGS Certifies the Finest Known Indian Head Cent Struck in Gold...

Curved Clip Coins

Learn the Diagnostics of Authentic Mint Made Curved Clips...

Pattern Overstrike Certified by NGC

Previously Unreported and Believed to be Unique...

Rare Russian Swedish Overstriking

It was first struck as a Swedish 1 öre SM 1746 and then overstruck in Russia as a 1 Kopek 1758...

Story of the Bolivia 1942 50 Centavos Struck at the Philadelphia Mint on US Wartime Nickel Planchet

It stands as the only, and therefore finest known example...

2000-P "Cheerios" Dollar

Nearly all known examples were originally found in occasional boxes of Cheerios cereal...

Sacagawea Mated Pair

Here is one of the most exciting mated pairs of U.S. coins that I have ever handled...

The United States Department of the Treasury $100 Specimen Note

The specimen featured here included information from the United States Department of the Treasury regarding new security features...

What Is A Variety?

There seems to be some confusion as to exactly what constitutes a variety...

2007 Denver Errors

Even though the U.S. Mint has drastically reduced the inadvertent release of major mint errors in the last few years, a few mint errors struck by the Denver Mint in 2007 recently surfaced...

1984 Mint Error Catalog

Here is another in a series of Mint Error Catalogs from Fred Weinberg...

1903 Louisiana Purchase Three-Piece Cardboard Die Trial Certified By NGC

The cardboard has a rich, deep gold color, obviously meant to suggest the gold dollars that were soon to be struck...

Certified But Not Graded: Adjustment Strikes, Struck Thrus and Other Mint Errors

There are a few types of error coins that are eligible for NGC certification, but do not receive a grade...

NGC Certifies Previously Unaccounted 1943-S Bronze Cent

A previously unrecorded 1943-S Lincoln cent, erroneously struck on a bronze planchet and found in circulation by a teenaged collector over a half century ago, was recently certified...

South American Error Coins

Here are some photos of South American Error Coins that were submitted by one of our readers...

50 Year Old Crazy Kid

Then I started hearing about the "error" coins being found and I went into a new frenzy looking closely at all my state quarters...

1983 Mint Error Catalog

Here is another in a series of Mint Error Catalogs from Fred Weinberg...

1903 Louisiana Purchase Three-Piece Cardboard Die Trial

Cardboard impressions are obviously rare but they date back to 1849 for the gold dollar...

1983 China Mint Tour

I have had the opportunity to take numerous tours of the official government-run Shanghai Mint through the years...

A Quartet of Swedish Double-Strikes

I wanted to share this group of four 5 öre coins from the last 100 years of Swedish coinage...

Unique Gold Solidus

The coin has two reverse sides...

World Errors

Here are some more rare and unusual major mint errors from around the world...

1982 Mint Error Catalog

Here is another in a series of Mint Error Catalogs from Fred Weinberg...

World Errors

Here are a few of the more dramatic ones...

Presidential $1 Error Coins: James Monroe

NGC has certified a few James Monroe $1 edge lettered planchets...

Chile and Costa Rica Errors

One of the readers of Mint Error News Magazine wanted to show three of his world errors from South America...

Unique Fold-Over Clock

This fold-over clock represents the only known clock of twelve fold-over Cents...

1981 Mint Error Catalog

Here is another in a series of Mint Error Catalogs from Fred Weinberg...

What Are Die Caps?

A die cap is caused when a struck coin sticks to the upper hammer die...

World Errors

Here are a few World Errors that I recently purchased from a collection that was assembled over many years...

Presidential $1 Error Coins: 2007 Proofs

As a general rule, modern proof error coins are scarce...

1979 Mint Error Catalog

Here is another in a series of Mint Error Catalogs from Fred Weinberg...

World Errors

Here are a few World Errors that I recently purchased from a collection that was assembled over many years...

1978 Mint Error Catalog

Here is another in a series of Mint Error Catalogs from Fred Weinberg...

Presidential $1 Error Coins: George Washington

This is the first in our new article series featuring Presidential $1 Error Coins...

Presidential $1 Error Coins: John Adams

Just like the Washington $1 coins, the Adams coins show an abundance of edge lettering errors...

1998 Cent Struck On An Unplated Foreign Zinc Planchet

Wrong planchet/off-metal errors are always in demand, and doubly so if they are accompanied by another error...

1979 Mint Error Catalog

It is always exciting to compare current mint error prices with those from decades ago...

Two New "Extrusion Strikes"

Extrusion strikes provide a fascinating exception to the notion...

Fascinating Mint Errors

The new error coin collector would enjoy viewing these spectacular pieces...

Mint Error Prices: Then & Now

Readers who are starting to collect mint errors will find it interesting to compare today's prices of major mint errors with those of 1975...

Mint Error News Museum: Gold Errors

These are exciting and dramatic examples of major mint errors that we wanted to share with our readers...

Al's Coins 2007 Mint Error Price List

Specializing in Mint and Currency Errors for 25 years...

Fred Weinberg's Price List of Major Mint Errors & Currency

We proudly offer many dramatic & very Rare Type coins, and more current Errors (1960's + 1970's) that have not been on the market for 20-30 years...

PCGS Certifies 1965 English Penny Struck on a Gold Planchet

This is one of the most spectacular major mint errors of all time...

1864 Large Date 2¢ Struck on a 1¢ Planchet

Major mint errors in the 2¢ series are very rare...

Pennsylvania Quarter Double Struck Mated Cap Pair

This is a spectacular and very dramatic mated cap pair...

1943 Lincoln Cent Struck on a Cuba One Centavo Planchet

This 1943 Lincoln cent off-metal struck on a Cuba blank is unique...

1867 Shield Nickel With Rays Struck on Wrong Planchet

Shield Nickel off-metals are extremely rare...

World Mint Errors

I wanted to share some of my recent world mint error purchases with the readers of Mint Error News Magazine...

Morgan Dollar Reverse Die From San Francisco Mint

There are only a few known Morgan Dollar canceled dies from the San Francisco Mint...

1859 Indian Head Cent Deep Obverse Die Cap

This die cap struck so many blanks that it barely fits in the PCGS slab...

1862 Indian Head Cent Deep Obverse Die Cap

This obverse die cap is so deep that it will not fit in a PCGS, NGC, ANACS or ICG holder...

Coin Punch Presses

Here are photos of two different types of punches used at different times at the U.S. Mint...

Blanks & Planchets - The Best Little Secret In Errors

Collecting Blanks & Planchets can be one of the most challenging collecting areas...

2004 Malaysian 10 Sen Die Cap Mated Pair

Coin #1 is a Deep Die Cap and mated to Coin #2, which has an expanded uniface obverse...

Mated Pair of U.S. $1 Silver Eagles Certified by PCGS

This is a spectacular One Dollar Silver Eagle mated pair struck at the Philadelphia Mint in 1986...

The Milt Cohen Collection

It is fascinating to not only view all of the rarities that were in his collection, but also to remember where some of them have gone over the years...

Rare Kennedy Mated Sets Surface After Forty Years

These were unknown until this small group was discovered...

Unique SBA Dollar Mated Pair

This is one of two known mated pairs of SBA Dollars...

Kennedy Half Dollar Die Cap

This is the largest Kennedy Half Dollar mint error that I've ever seen...

1999 SBA Dollar Multi Struck Die Cap

This is the largest SBA Dollar mint error that I've ever seen...

1863 Indian Cent Reverse Die Cap

This is a spectacular and dramatic deep dish shaped reverse die cap and is the size of a U.S. quarter...

Indian Cent Cu-Ni Reverse Die Cap

Reverse die caps in the Indian cent series are actually rarer than obverse die caps...

1865 2¢ Obverse Die Cap & Brockage

This is a spectacular 2¢ Die Cap...

NGC Certifies Double Struck 1873 $20 J-1344

This is an extremely rare pattern which is also double struck...

Interesting World Errors

A collection of mint errors from around the world...

1861 Clark, Gruber & Co. Twenty Dollar (K-8) Struck Over an 1853 U.S. Assay Office Twenty Dollar (K-19)

This unique piece was unknown to us until a couple of years ago...

1829 Large Cent First Strike Brockage Reverse

Most Large Cent brockages are very circulated and show the incuse wreath on the obverse...

Braided Hair Large Cent Struck 35% Off-Center

It is one of the finest known off-center Large Cents...

Unique 1838 $5 Die Trial Splasher J-A1838-6

PCGS recently authenticated and certified this spectacular $5 die trial...

MISSTRUCK UNITED STATES GOLD COINS

Compiled by Dennis O'Reilly, March 2006...

2001-S Proof Rhode Island Quarter Double Struck in Silver

To date, this is the only known proof State Quarter that is double struck and in Silver...

1965 Kennedy Half Dollar Unique Double Struck Mated Pair

A dramatic and wild mint error pair...

The Bolt Collection

It is incredible to see how inexpensive these mint errors were priced at over 30 years ago...

Mint Tour Photos

From a recent Mint tour...

1812 Cap Bust Half No Edge Lettering

It is one of only six known plain edge Bust Half Dollars in the entire series...

1996 Turkish Gold 25 Kurush Full Reverse Brockage

Brockages on world gold coins are rare...

1875 3¢ Nickel Struck Fragment

Major mint errors in the 3¢ Nickel series are very rare...

1859 Pattern Longacre's Liberty Head Uniface Die Trial

This is one of three known uniface die trials by Longacre to create the 1859 U.S. Half Dollar pattern...

1969-S Proof Roosevelt Dime Struck Clad Layer

This is the first struck clad layer on any U.S. denomination struck in proof...

1965 Jefferson Nickel Special Mint Set Struck 5% Off-Center

Major mint errors from Special Mint Sets are very rare...

1873 Seated Dime w/Arrows Struck 12% Off-Center

All major mint errors in the Seated Dime series are rare...

1921 Morgan Dollar with an Adjustment Strike and a Misaligned Obverse Die

Significant Morgan Dollar errors are rarely encountered...

Extremely Rare 1937 Great Britain Half Pence Edward VIII Uniface Die Trial

This die trial striking is of great numismatic importance and rarity...

PCGS Certifies 1869 3¢ Proof Silver Pattern In Aluminum With A Double Struck Obverse

All proof errors are very rare as well as all U.S. Pattern errors...

1989-D Lincoln Cent Struck on Bronze Planchet

There are three known transitionals of this type...

1990-D Lincoln Cent Struck on Bronze Planchet

It should be on a copper-zinc blank planchet...

1974-D Ike Dollar Struck on 40% Silver-Clad Planchet

This TRANSITIONAL is from the Denver Mint...

1944-P Jefferson Wartime Nickel Transitional Mint Error

Struck on a copper-nickel planchet...

Silver Dollar Errors

Silver Dollar errors such as these are quite scarce and extremely valuable...

1952 Lincoln Cent Double Denomination on Struck Dime

One of the earliest dated Lincoln Cent double denominations...

1912 $2½ Indian Gold Struck 10% Off-Center

Gold mint errors are rare if they are struck more than 5% off-center...

Copper Ingot - From the Fred Weinberg Collection -

This ingot would have been melted, refined and eventually rolled into copper planchet strips...

Off-Metals Struck At The San Francisco Mint

From a collection that was auctioned by the State of California...

Ethiopia Werk Muled With KM-18 Reverse

This is only the second gold mule that I've ever heard of...

Mercury Dime Double Struck 2nd Strike 25% Off-Center

This is a very dramatic double struck Mercury Dime...

1794 Franklin Token Incomplete & Curved Clips

All Major Mint Errors on Colonial Coins are scarce...

America's first Double Denomination

An Oak Tree Sixpence struck over an Oak Tree Shilling...

1886 Broadstruck Gold Dollar

Such errors are highly unusual for anything struck in gold...

1877 Seated Quarter Die Trial Adjustment Strike

All die trials for US TYPE coins are extremely rare...

AD 582-602 Byzantine Gold Justin II Full Brockage

Full brockages on ancient gold coins are extremely rare...

Lincoln Cent Struck on Bow-Tie Dime Scrap

Bow-tie errors are very scarce, but to have an off-metal bow-tie error is unbelievable...

1875 CA Gold Fractional 25¢ Uniface Reverse

All major mint errors on U.S. Gold coins are extremely rare...

1873 Octagonal 25¢ BG-793 CA Gold Fractional Rarity-5 Indian Head Full Obverse Brockage

An incredibly rare obverse brockage of BG-793...

A Partial Brockage, Double Struck, Partial Collar Bust Dime with UNITED STATES spelled UNIAMERIATES

This is a very unusual 1835 bust dime...

Canadian Mint Error

This is an incredible and unique Canadian mint error...

1923-S Peace Dollar Die Trial Struck 5% Off-Center

This is a spectacular Peace Dollar major mint error...

Ike Dollar Struck on a Dime Planchet

It is estimated that there are only six to eight known Ike Dollars struck on clad Dime blanks...

Unique U.S. Territorial Gold Error

The Bechtlers were the first large-scale Private Gold Coiners...

1853 $1 U.S. Gold Type 1 Broadstruck and Partial Collar

This is the only known broadstruck Type 1 $1 Gold Piece...

Rare Pattern Mint Errors

A selection of rare pattern mint errors...

Double Struck 1838 Half Dollar Pattern

There are fewer than 2 dozen confirmed errors over the course of the entire pattern series...

Unique Obverse Die Cap

Major mint errors in the Seated Half Dollar series are extremely rare...

1942 Walking Liberty Half Dollar Struck On A Silver Quarter Planchet

There are only a handful of off-metal Walking Liberty Half Dollars known...

Unique 1981 Dime Cap Overstruck on a 1981 Cent Cap

This Lincoln Cent was a deep obverse cap that struck many Lincoln Cents...

Barber Half Full Obverse Brockage

This is one of the most spectacular major mint errors...

Buffalo Nickels on Cent Planchets

I have listed the examples known to me of Shield nickels on cent planchets...

1918-S Standing Liberty Quarter Struck 13% Off-Center

All Major Errors on Standing Liberty Quarters are extremely rare...

1898 Barber Quarter Obverse Die Cap & Brockage

This is the only known obverse die cap in the Barber Quarter Series...

Draped Bust Dollar Struck 15% Off-Center

This Draped Bust Dollar mint error is well known in the numismatic community...

Pair of Barber Dime Die Caps

This is a unique pair of Barber Dime Die Caps...

1795 Flowing Hair Dollar Struck on Flawed Planchet

It was struck on a planchet with major flaws on both sides...

1855 Large Cent Obverse Die Cap

There are only a handful of Large Cent caps known...

Spectacular Double Struck Clark Gruber $20 Gold

Clark Gruber was the most respected and well known financial and banking company...

Double Struck 1797 Draped Bust Large Cent

Draped Bust Large Cents are rare in MS 65...

Spectacular Buffalo Nickel Off-Center on Cent Planchet

Multiple errors on type coins such as the Buffalo Nickel are unheard of...

Double Struck 1924 Standing Liberty Quarter

It is very rare to find any major mint errors in the Standing Liberty Quarter series...

Unique Morgan Dollar Struck 20% O/C & Brockage Reverse

This is a spectacular major mint error in the Morgan Dollar series...

Two Headed Muling

This two-headed muling, a business striking - not a proof, was recently rediscovered...

U.S. Half Cents: An Undiscovered and Unloved Series

If you want a series to collect that won't break the bank...

(1943) Denver Quarter Struck on U.S. Steel Cent Planchet

There are only a few known Washington Quarters struck on U.S. Steel Cent Planchets...

Two Dramatic Indian Cent Errors

Most mint errors that are double struck are found with the second strike off-center...

1874 $1 U.S. Gold Type 3 Broadstruck

This is the only known broadstruck Type 3 $1 Gold Piece...

1909 Indian Head Cent Struck on Silver Dime Blank

This is a spectacular Indian Head Cent struck on a silver Dime blank intended for a Barber Dime...

1873 Shield Nickel Struck on Cent Planchet

All major mint errors in the Shield Nickel series are very rare...

1964 Kennedy Half Dollar Struck on Clad Quarter Planchet

This 1964 Kennedy Half is a rare TRANSITIONAL off-metal with only a few known...

2000-P "Mule" Sacagawea Dollar Reverse With States Quarter Obverse

There are now ten (10) confirmed specimens of the Sacagawea Dollar/Quarter Mule...

1898 Barber Quarter Obverse Die Cap & Brockage

This is the only known obverse die cap in the Barber Quarter Series...

A Two Country Double Denomination

This is one of two known Large Cents overstruck on coins from other countries...

Indian Cents on Dime Planchets

Indian Cents struck on silver dime planchets were often offered as patterns in early, circa 1900, auction sales...

Two Interesting Indian Cent Errors

I'd like to share these two major mint errors from my collection of Indian Cents...

Rare Double Struck Liberty Seated Dime

Double struck Liberty Seated Dimes are very rare...

1880-S Morgan Dollar Struck 40% Off-Center

Many consider this off-center Morgan to be the finest known example for the series...

Spectacular Off-Center French Gold LD'OR

This is a spectacular Major Mint Error on a 300 year old gold coin...

Unique Overstruck French Gold LD'OR

This is a unique 1701-C ½ LD'OR struck off-center on a 1694 ½ LD'OR...

Unique Pattern Capped Die

All major mint errors on proof patterns are very rare...

Double Struck Proof Pattern

All proof errors are very rare as well as all US Pattern errors...

Spectacular Proof Gold Mule

This is one of the most spectacular mint error mules of all time...

Unique German Die Trials

This is a UNIQUE Die Trial set of four different German denominations...

1853 U.S. Assay $20 Gold Piece Certified as Double Struck by NGC

All Major Mint Errors on U.S. Gold Coins are extremely rare...

1859 Indian Head Cent Obverse Struck on an 1857 Seated Half Dime

This is one of the most dramatic and unique major mint errors ever discovered...

Fred Weinberg's Off-Center $20 Liberty

This spectacular $20 Liberty Gold Piece is the farthest known off-center...

A Unique 1877 $50 Reverse Hub Trial in Lead

There are only 272 Splashers known and only 43 Hub Trials known for the entire U.S. Pattern series...

Shield Nickels on Cents

Shield nickels on cent planchets have often been mistaken for regular die trial pieces...

Unique Origami Error

The term "origami" derives from the Japanese language for the art of paper folding...

1974 Aluminum Cent

In the early-mid 1970's my grandfather ran a small pawn shop in Mississippi...

All on One Colonial Copper

A Double Struck New Jersey, a Connecticut Undertype and a Brockage British Halfpenny...

U.S. Coins - Weights & Specifications

Click to view this informative chart...

1867 5¢ Obverse Hub Trial Struck in Copper

Why produce an aluminum five-cent pattern?...

Unique 1860 $5 Reverse Hub Trial Struck in Copper

Why a $5 pattern in 1860? According to Judd, in 1860 the U.S. Treasury discovered that...

Highlights From My Collection of Swedish Error Coins

This is a journey through my Swedish collection of error coins...

Errors From The Royal Mint

The Royal Mint of the United Kingdom has the reputation as being one of the tightest "quality controlled" mints in the entire world...

Matched Brockage Pairs

Collectors of brockages know that all brockages are scarce...

Double Struck Swedish Gold Coin

An 1884 20 Kroner gold coin that is double struck...

1862 Indian Cent Obverse Die Cap

This is one of the most spectacular and dramatic die caps known...

1901/0-S $5 Liberty Gold Struck 10% Off-Center

This piece is one of the most spectacular gold errors ever discovered...

1944 Steel Cent

There is confusion whether some of the planchets designated for...

Eight Reales with Four Error Features

These four error features are then as follows: off-center, flip-over, double-strike and partial brockage...

1846 PROOF $2½ Overstruck by 1846 PROOF $5

This spectacular Pattern Die Trial is also a Major Mint Error...

Unique Double Denom Error Note

Although there are double denominations known, this is the only one reported where...

An 1803/2 $5 Gold Piece with an Off-Center Obverse

It is very rare for any U. S. gold coin to be also a mint error...

Off-Metal Walkers

One of these coins is very rare, but to have two of them was amazing...

Thrill of the Hunt

It sure is fun collecting error coins since they are so different and sometimes even unique...

Highlights From My World Error Collection

For many years I have been interested in building up a collection of world error coins...

1916 Mexico Gold 60 Pesos Oaxaca Overstruck on an Earlier 8 Escudos Hand on Book Type

A fascinating and dramatic numismatic rarity...

1999 SBA Dollar Struck on a Struck Georgia Quarter

This is only one of two known obverse SBA caps...

The Story Behind An Interesting Overstrike Coin

The coin that illustrates this story is a 1951 Norwegian 1 Kronor struck on a 1946 Swedish 1 Kronor...

2000 Cent Flipover Strike

It's a very appealing error to look at...

Double Struck French 5 Francs on Spoon!!

This is one of the most outrageous, exotic, dramatic and unique mint errors that I have ever encountered in 25 years...

1963 Half Crown Struck on a Half Penny Copper Planchet

A very rare off metal from Great Britain...

The Amazing Broken CC and Other Errors on Display

This coin is the most dramatic error ever heard of on a Morgan Dollar...

Learning About Minting from an Errant Elephant

What can we learn from this off-center piece?

A Fascinating 1790 Mule

It has an estimated mintage of five pieces struck and is the first one we've ever seen of this type...

The Only Complete Set of 1999 State Quarters Struck on Exp Plan

There are approx. 15 known 1999 State Quarters struck on Exp Planchets...

Triple Struck Double Denom Rev Brockage Off Metal or Triple Denom?...

The slab label is too small for a full description of this fabulous error...

Unique Charles A. Lindbergh 14-Inch Obverse Bronze Galvano For The 1928 Congressional Gold Medal by Laura Gardin Fraser

It appears that this is the only Laura Gardin Fraser galvano in private hands...

Charles A. Lindbergh 14-Inch Plaster Of The Reverse Design For The 1928 Congressional Gold Medal by Laura Gardin Fraser

This features Laura Fraser's dramatic representation of an iconic flying eagle on the reverse of the medal...

Unique 15-Inch Oklahoma Run Plaster by Laura Gardin Fraser for the 1957 Oklahoma Semi-Centennial Medal

This unique Oklahoma Run plaster is absolutely amazing...

Oregon Trail Memorial Half Dollar Plaster by Laura Gardin Fraser

It is one of two known and is in superb original condition...

1971-S Proof Silver Eisenhower Dollar Double Struck Both Strikes Off-Center

It is hard to imagine a proof off-center and double struck Eisenhower Dollar that is more dramatic...

Unique Liberia Gold Pattern

This is a unique Liberia gold $5 pattern featuring James Monroe from their Presidential Series...

Unique Proof Kennedy Half Struck on Silver Dollar Planchet

This proof Kennedy Half major mint error is unique in many ways and has no equals...

Unique Proof Bicentennial Ike Dollar Double Struck, 2nd Strike Off-Center

This proof Bicentennial Dollar major mint error is unique in many ways and has no equals...

Unique Shield Nickel Multi-Denomination Mated Pair Error Discovered

Long time error specialist Greg Bennick has discovered a multi-denomination mated pair of uncirculated 1867 Shield Nickels...

New Discovery: Unique Proof 1973-S Kennedy Half Dollar Die Piece and Die Break Error Mated Pair

This unique mated pair is a new discovery and fresh to the market from an old time collection...

1973-S Proof Eisenhower Dollar Unique Mated Pair

This unique Proof Eisenhower Dollar mated pair is the first known of this type of error...

UNIQUE GOLD QUARTER

This U.S. GOLD QUARTER is far and beyond the most incredible modern U.S. mint error ever to be discovered...

New Off-Metal Discovery: 2018-P Roosevelt Dime on Steel Planchet

This is a fascinating new discovery. U.S. Roosevelt Dime off-metals are very rare...

Modern Jefferson Nickel On Bowtie Scrap

This discovery piece is the only known bowtie clip on a modern Jefferson Nickel struck between 2006-2022...

Unique Proof 1971-S Eisenhower Dollar Overstruck on a San Francisco Assay Office Medal

This unique Proof 1971-S Eisenhower Dollar Overstruck on a San Francisco Assay Office Medal is featured in the Platinum Session of the August 2022 Heritage US Coins Signature® Auction...

Unique GOLD Buffalo Certified by NGC AU 53

As amazing as it sounds, this is a 1913 Buffalo Nickel struck on a U.S. $5 Gold planchet...

NGC Certifies Unique Wartime Discovery 2.5 Gram Bronze Cent Struck at the San Francisco Mint

The consensus is that it was struck on a 1942 Curacao cent planchet that had been coated or plated with zinc before being struck...

GreatCollections Reveals Discovery of 2021 - $10 Type 2 Gold Eagles with "W" Mint Mark

These discovery coins show how full of surprises our industry can be...

Second Martha Washington Half Dollar Obverse Die Discovered

A collector and reader of Mint Error News just purchased the second known Martha Washington Obverse Die from Mike Byers Inc...

Unique Proof 1973-S Eisenhower Dollar Broadstruck on Bronze Planchet

This is a unique and amazing 1973-S Proof Eisenhower Dollar struck on a bronze planchet...

PCGS Certifies Proof 40% Silver Kennedy Half Dollar Elliptical Strike Clip With Brockage Reverse

It is also considered struck scrap but it is actually an elliptical strike clip...

PCGS Certifies Unique Pair of Proof Ike Dollars Struck on the End of the Planchet Strip

This unique discovery is the only known pair of proof Ike dollars that were struck on the end of the planchet strip...

NGC Certifies First Known Sacagawea-Presidential Dollar Mule

The intriguing discovery coin combines an obverse and reverse from two different dollar series...

Extremely Rare German 5 Mark Overdate

The most likely scenario is that the Mint used a leftover 1931 dated 5 Mark Oak Tree die...

Unique German Third Reich Matte Proof Set in Silver

It is amazing that this set survived World War II and was preserved for 8 decades...

Mated Pair of 1974-S Lincoln Cents Struck by 2 U.S. Cent Obverse Dies

It stands alone in a class by itself in terms of rarity and fascination and combines an incredible...

NGC Certifies Amazing & Unique Proof Ike Dollar Mated Pair With Two Different Off-Metals

This amazing unique discovery is the only known off-metal mated pair on any U.S. proof coinage that combines two different off-metals...

U.S. Proof Quarter Overstruck on Canadian George V Quarter

This unique 1970-S Proof Quarter from the United States was overstruck on a Canadian Quarter that circulated during the reign of King George V from 1911-1936...

Proof 1977-S Nickel Overstruck on 1977-S Dime Double Denomination with Two Dates

This is the only double denomination of the four known showing two dates...

Unique Proof Kennedy Half Dollar Double Denomination

This newly discovered and certified Proof Kennedy Half Dollar on a struck Washington Quarter is the only known...

Unique Proof Double Denomination Bicentennial 1976-S Quarter Double Struck on a Struck Dime

This is the only known proof Bicentennial Quarter double struck over a struck Dime...

Set of 4 Weakly Struck American Eagles

Coins that are weakly struck occur when a coin is struck from the press with very little pressure...

Unique Pattern 25¢ Major Mint Error

Major Mint Errors on Proof U.S. coins are rare...

NGC Certifies Unique Great Britain Lead Die Trial

This is the only known 1911 Great Britain 1/2 Sovereign Die Trial...

NGC Certifies Unique 1952 Great Britain Penny

The only penny struck by the Royal Mint in 1952 is a numismatic unicorn...

Unique 1974-S Aluminum Cent

The Only 1974 Aluminum Cent that can be Privately Owned...

Unique Bavarian Medal Gold Off-Metal Strike with Mint Engraving

The reverse includes six lines of hand engraving from the Bavarian Mint...

Unique Spanish 100 Reales Die Trials Struck in Gilt Copper

This is a unique and spectacular set of obverse and reverse die trials for Spain's 1856 Proof Gold 100 Reales...

Unique Dual Mint Mark Discovery Proof Bicentennial Quarter on Cent Double Denomination

This is the only known proof U.S. coin that shows two mint marks from two different U.S. Mints...

1973-S Proof Clad Ike Dollar Double Struck On A 50¢ Planchet

This is one of the most spectacular Proof Ike Dollar Mint Errors...

Unique China One Ounce Gold Panda Partial Collar

This is the only known major striking error on the one ounce gold Panda coin...

Proof 1976-S Jefferson Nickel Obverse Cud (Die Break) Just Discovered

A few extremely rare Proof 1976-S (Bicentennial Year) Jefferson Nickel Cuds were just discovered...

Double Struck Broadstruck 1973-S Proof Clad Ike Dollar

This is an amazing double struck and broadstruck PROOF Ike Dollar...

Unique Proof Double Denomination Dual Date Bicentennial 1976-S Quarter on a Struck 1967 Dime

This is the only known proof Bicentennial Quarter struck over a Roosevelt Dime...

Unique 1969-S Proof Dime Mated Pair

This is one of the most dramatic, fascinating and intriguing proof errors ever discovered...

Dual Country Double Denomination Panama 1c Double Struck on U.S. Lincoln Cent

The coin rotated 90 degrees with a beautiful second strike that is 30% off-center...

1973-S Proof Clad Ike Dollar Double Struck On A 50¢ Planchet

This is one of the most spectacular Proof Ike Dollar Mint Errors of all time...

PCGS Certifies Unique Standard Silver Pattern

This discovery coin was struck without Barber's initial on the ribbon...

NGC Certifies Unique Great Britain Crown Young Head Silver Die Trial

NGC recently authenticated and certified this unique Great Britain Silver Crown Die Trial Piedfort Pattern...

Great Britain Britannia Proof Gold Mule

There are only 3 known authenticated and certified obverse mules on the Britannia Proof Gold Coin Series from Great Britain...

NGC Certifies Unique U.S. 25¢ Feeder Finger From The Denver Mint Grabener Press

This is the only known full-size feeder finger for any U.S. denomination that has not been struck by coin dies...

NGC Certifies Unique Two-Tailed Off-Metal 10 Cent Euro

The only known 10 Cent Euro struck with two reverse dies and is off-metal on a chrome plated iron planchet...

PCGS Certifies Two-Headed Off-Metal Russia 50 Roubles

Should Be Struck in Gold and in Proof...

NGC Certifies Unique Mint Canceled Martha Washington Quarter Test Strike

Newly redesigned Martha Washington dies were used to strike test pieces at the United States Mint in 2011 and 2012...

NGC Certifies Unique Great Britain Lead Die Trial

This unique die trial has a thickness of 5.69mm and was encapsulated in an NGC holder that is twice as thick...

NGC Certifies & Encapsulates Unique Pair of Mercury Dime Dies

This is a recent discovery of a unique pair of 1935 Mercury Dime obverse and reverse dies from the Philadelphia Mint...

DISCOVERY COIN: Mule Die Clash

Mint Error News Magazine reports the discovery of the unique mule die clash discovery coin certified by PCGS...

NGC Certifies Unique Gold $1 1852 Judd #138 On A Cut-Down Gold Plated Seated 10¢

It is the only known U.S. pattern or coin that was gold plated (gilt) at the Mint and then overstruck...

NGC Certifies Unique "Mint Cancelled" Error Coin

This 2007-D Washington quarter was originally struck on a Sacagawea $1 planchet before being cancelled by the US Mint...

NGC Graders Discover "Light Finish" 2018-S Silver Reverse Proof Set Half Dollars

NGC will attribute this new variety by request through its VarietyPlus service...

"Two Tailed" Dual Date Double Denomination Mule

In this case a 2006 Chilean 5 Pesos reverse die was mis-matched with a 2006 Chilean 1 Peso reverse die...

PCGS Certifies Unique Canada Platinum Striking

This is the only known Canadian $100 platinum striking of any design or series...

NGC Certifies 2016 Silver Eagle with Very Rare Mint Error

The severity of the die clash is among the most dramatic ever seen on a US Mint bullion coin...

NGC Experts Identify Mint Error on 2014 5 oz Silver ATB Coins

The Great Smoky Mountains coins are missing a "P" mintmark that ought to accompany their matte finish...

PCGS Certifies Unique Mated Pair of Proof Gold Die Caps

This is a unique mated pair of the only known reverse die caps for any Canadian gold coin...

NGC Certifies Mule Error on 2017 Canadian Timber Wolf Coin

A rare error on a large modern coin is identified by NGC and confirmed by the Royal Canadian Mint...

NGC Certifies Unique Proof Platinum Mint Error

With a mintage of only 5,000 it is remarkable that a major mint error was released...

Fascinating Canadian Gold Mint Errors

This is one of the most fascinating mint errors ever struck at the Royal Canadian Mint...

NGC Grades Rare Canadian Silver Maple Leaf Error

A wrong planchet error such as this is extraordinarily rare for a silver bullion coin due to the extensive scrutiny of these coins...

NGC Certifies 17 Experimental Glass Cents and Tokens

The patterns were struck during World War II by the Blue Ridge Glass Corporation...

NGC Certifies Mexico 60 Pesos Struck on U.S. $10 Liberty

This fascinating and dramatic numismatic rarity would be the centerpiece of a major world gold coin collection or a collection of U.S. $10 gold coins...

Unique "Two Headed" Off-Metal

This is one of three known U.S. or World coins that were struck...

NGC Certifies Unique GOLD Belgium Franc Obverse Die Trial (1904 Design Overstruck on 1903 Design)

This is a unique, spectacular and dramatic Belgium Franc struck in GOLD...

NGC Certifies Unique Cent

1982-D Small Date variety previously unknown in bronze...

NGC Grades Rare Canadian Silver Maple Leaf Error

A unique Canadian Maple Leaf error is certified by NGC...

PCGS Certifies Unique TWO-HEADED Nickel

This is the only known U.S. regular issued coin of ANY denomination that was struck with two obverse dies...

NGC Certifies Unique 1943 Lincoln Cent 13-Piece Set Including an Experimental Antimony Test Piece

These were part of the metallurgical testing done by the Philadelphia Mint for an alternative to the pre-1943 bronze cent...

NGC and PCGS Certify Previously Unknown Experimental Blanks and Planchets

This is part of the U.S. Mint's history and production of experimental coinage...

NGC Certifies Pair of Unique 1880 Spain 50 Centimos Coins

These two strikings were most likely presented to King Alfonso XII, whose portrait appears on the obverse...

NGC Certifies Pair of Rare, Historic French Mint Errors

Two mirror brockages were likely the very first (or only) coins struck with the reverse die cap...

PCGS Certifies TRANSITIONAL 1989-D Lincoln Cent Struck on a 3.1 Gram Copper Planchet (Pre-1983 Cent Planchet)

It encompasses not only the popularity of the 1983 copper transitional Lincoln Cents but also the excitement and mystique of being struck by the Denver Mint 6 years later...

NGC Certifies Unique Double Denomination

It is unique since it is a double denomination that is 4 years apart...

PCGS Certifies Unique Proof Canadian $15 Struck on a $50 Maple Leaf 1 oz. Gold Planchet

This is one of the rarest, most expensive and spectacular Canadian mint error coins known...

PCGS Certifies Walking Liberty Half Struck 50% Off-Center - Finest Known & Most Off-Center

This is the finest known and most off-center Walking Liberty Half...

From the Grading Room: 1964 Lincoln Cent Struck On a Coin of India

NGC Graders share an intriguing and visually dramatic error coin that was recently submitted for certification...

PCGS Certifies Unique SPECIMEN Canada 1/2 oz Maple Leaf $20 Brass Uniface Die Trials

These are the only known Canadian $20 SPECIMEN brass die trials of any design or series...

NGC Certifies First Foreign Gold Pattern Ever Struck by United States

NGC graders have certified a rare 1855 Peruvian Gold Pattern 2 Peso struck at the Philadelphia Mint....

PCGS Certifies Unique 1990-D Lincoln Cent TRANSITIONAL Struck on a 3.1 gram Copper Planchet (Pre-1983 Cent Planchet)

Unbelievably, here is an authenticated, certified and graded unique transitional Lincoln Cent struck in 1990...

(16) Proof 40% Silver Ike Dollar Planchets Including PCGS Discovery Coin Discovery Group of 15 NGC Certified Blanks From The San Francisco Hoard

For four decades, there was just one unique Proof 40% Silver Ike Dollar blank known to the numismatic community...

(12) Proof Clad Ike Dollar Planchets Including 2 NGC Discovery Coins Discovery Group of 10 NGC Certified Blanks From The San Francisco Hoard

For years, there were just two Proof Clad Ike Dollar blanks known to the numismatic community...

PCGS Certifies Unique Proof $100 Canada National Parks Commemorative Gold Coin Reverse Die Cap & Brockage Obverse

This Canadian Gold $100 Reverse Die Cap is the only known obverse or reverse die cap for any Canadian gold coin...

NGC Certifies Proof Canadian $15 STRUCK IN GOLD (should be struck in silver)

This is one of the rarest, most expensive and spectacular Canadian coins known...

NGC Certifies 1976-S 5C Obv Impression Struck Into Center of $1 Planchet (Proof Nickel/Dime Mule)

This unique striking is a proof mule, struck by the San Francisco Mint on a proof Ike Dollar planchet...

NGC Certifies Newly Discovered Platinum Eagle Variety

A 2007 W platinum $100 piece in proof with an obvious die-polishing error has been found...

Another Platinum Eagle Frosting Error Surfaces

The word FREEDOM is frosted instead of brilliantly polished...

PCGS Certifies Washington Dollar Struck on 5¢ Planchet

There are only two known off-metals in the Presidential Dollar series...

New Mint Error Type Discovered

This is a unique discovery and first reported in Mint Error News...

NGC Certifies A Peace Dollar Double Struck With 2nd Strike 80% Off-Center

Double Struck Peace Dollars are extremely rare and are highly coveted by mint error collectors and dealers...

Double Struck 1884-CC Silver Dollar GSA/NGC Certified

Major Carson City mint errors are among the most desired and valuable U.S. errors...

Australia Two Tailed Gold Nugget

To date, this is the only certified gold coin that was struck from either two obverse dies or two reverse dies...

Presidential Dollar Mint Errors

Major mint errors in the Presidential Dollar series are very scarce...

Great Britain 20P Mule

Here is a new and exciting major mint error to come from the Royal Mint in London...

Monroe Dollar Missing Edge Lettering Discovered In 2008 Philadelphia Mint Set

Recently a few mint sets were discovered that contained the Monroe Presidential Dollars without the edge lettering...

Incredible Error Note

This is the second error note that I have handled...

Hayes/Grant Mule Medal

So far only two have been identified since it's 2003 release...

From the Grading Room: 1948 Obverse Die Trial for the Franklin Half Dollar

An unusual and likely unique Franklin Half Dollar die trial...

Adams First Spouse Bronze Medal Mule Discovered

A new mule has been recently discovered on the U.S. First Spouse Medal...

PCGS Grades First Native American $1 Coin Missing Edge Lettering

On March 6, 2009, PCGS received the first reported and only-known Native American dollar with the edge lettering missing...

Bolivia 10 Centavos Mint Error Set

Here is an incredible set of Bolivia 10 Centavos mint errors...

PCGS Certifies Unique Set of SPECIMEN Silver Certificates

Specimen notes are extremely rare and very few are known to exist today...

A Serendipitous Mint Set Find: (2007) SMS James Madison Missing Edge Lettering Dollars

They were not regular currency issue strikes but instead were found in Mint Sets and therefore have the satin finish...

Feeder Fingers Discovered From Several South American Countries

The first coin struck on an actual feeder finger was headline news in the numismatic community...

NGC Certifies Proof John Q. Adams $1 Struck On An Elliptical Planchet

As incredible as it sounds, another proof Presidential Dollar was just discovered struck on an elliptical planchet...

From the Grading Room: 1973-S Dollar on a Copper-Nickel Planchet

This superb gem Eisenhower Dollar was struck at the San Francisco Mint for inclusion in the series of "blue pack" silver-clad dollars...

1836 Half Dollar With Doubled Edge Lettering

Initiation of the Presidential Dollar coin program in 2007 brought about a renewed interest in lettered-edge coins...

NGC Certifies Proof Jefferson Presidential Dollar Struck on Elliptical Planchet

Unbelievably, a second known U.S. proof coin struck on an elliptical planchet has been discovered...

New 2007 Mint Errors

There have only been a few major mint errors discovered in 2007...

NGC Certifies 2008 Monroe Dollar Edge Lettered Planchet

This is the second one known dated 2008...

Unique NGC Set of Three Paraguay Gold Overstrikes

This is a unique set of nineteenth century Paraguay patterns that were overstruck on previously struck gold coins...

2007 India 5 Rupees Double Struck on Feeder Finger

Recently, several coins struck on feeder fingers from India were discovered...

From the Grading Room: 1825 Great Britain Pattern Farthing Mule, Struck in Platinum

This example is one of just a few known...

From the Grading Room: $50 Gold Eagle Error

The number of mint error coins actually escaping careful inspection at the mints has remained extremely small for the American Eagle series...

NGC Certifies Double Struck 1884 Carson City Morgan Dollar

This double struck Carson City Morgan Dollar is a significant rarity for several reasons...

NGC Certifies 1875-CC $20 Liberty Partial Collar

Major mint errors on U.S. gold coins are very rare...

1851 3¢ Obverse & Reverse Die Trial Struck on Cardboard

It is clearly embossed with lettering and design elements raised...

ANACS Certifies "Two Headed" 2 Cent Euro

This exciting discovery is a unique 2000 France 2 Cent Euro struck by two obverse dies...

Trio of Walking Liberty Half Dollar Errors

This trio of Walking Liberty Half Dollar mint errors is quite possibly the most impressive that has ever been offered...

Modern Euro Off Metals

Several of these may be the only ones known to date...

1864 2¢ Obverse Die Cap Mated With Brockage

Major mint errors in the 2¢ series are very rare...

Sacagawea Dollars with an Experimental Finish

Mike Byers discovered the original hoard of these Sacagawea Dollars with experimental finishes...

Modern Euro Off Metals

Several of these may be the only ones known to date...

NGC Discovers Proof Silver States Quarters Die Crack Errors

NGC recently identified die cracks on two issues of silver proof States Quarters...

UNIQUE 2001-P Sacagawea Dollar Struck on a 2001 Kentucky State Quarter

A unique coin with great details & PQ luster...

1973-S Kennedy Half Dollar Struck on Struck Aluminum Token

Proof Kennedy Half Dollar mint errors are very rare with only a few known...

Unique 1920 Standing Liberty Quarter Struck on Peru 20C Planchet Certified by NGC

This is the only known Standing Liberty Quarter struck on a foreign planchet for the entire series...

Martha Washington Half Dollar Test Piece

The Martha Washington design has been used by the Mint as an all-purpose test piece since 1965...

Double Struck Draped Bust Dollar

This is one of the most spectacular early type major mint errors that I've ever handled...

1982 Canadian Dime Muled with Cent Die

To date, this is the only reported specimen of a Canadian Dime that was muled with the reverse die of a 1982 Cent...

NGC Certifies Set of Two-Headed and Two-Tailed Great Britain Half Pence

There are approximately thirty genuine two-headed or two-tailed coins that have been authenticated by ANACS, PCGS or NGC...

Canadian 1978 Cent Struck on a U.S. 1973 Cent

A coin struck on dies from two different countries is extremely rare...

ANACS Certifies Sacagawea Dollar Struck on a Nickel Planchet

It is amazing that this 2005 dated Sacagawea Dollar was discovered struck on a nickel blank...

Unique 1999-P Lincoln Cent Struck on 1980-D Dime

It is one of the most intriguing and rare mint errors that I've ever handled...

Martha Washington Test Piece Struck on SBA Dollar Blank Planchet With Experimental Edge

The Martha Washington design has been used by the Mint as an all-purpose test piece since 1965...

1880/9-S Morgan Dollar Struck 10% Off-Center PCGS MS 63

This is the only known Morgan Dollar struck off-center that is also an overdate...

Rare Franklin Half Dollar Struck 70% Off-Center

It is always exciting to see a Franklin Half Dollar struck off-center since there are only a few known...

Martha Washington Test Piece Struck on Nickel Size Planchet

The Martha Washington design has been used by the Mint as an all-purpose test piece since 1965...

3 Decade Old Catalog Found

A 26 page catalog containing the finest major mint errors with photographs, descriptions and prices...

Just Discovered & Certified by NGC: A Two Headed Off-Metal

To date, this is the only known "Two Headed" or "Two Tailed" mint error that is also an off-metal...

J425/P497 Struck Over an 1840-O Quarter

The discovery of an 1865 pattern quarter struck over an 1840-O quarter may shed light on a series of pattern coins where the actual date of striking has long been a question...

Ike Dollar Struck on a 3.7g Clad Planchet

There is mystique and excitement surrounding this recently discovered Ike Dollar...

Unique 1965 Kennedy Half Dollar Discovery

This discovery mint error is unique and it is still a mystery why it was struck...

1989-D Lincoln Cent Transitional Double Struck on Bronze Planchet

This is a unique transitional major mint error...

1838 Gobrecht Struck Over 1859 Dollar

It is one of several overstrikes produced circa 1859-60...

Unique 1860 $5 Clark Gruber Reverse Die Trial

This uniface die trial is a fascinating piece of Gold Rush history...

Unique Pair of 1825 English Gold Sovereign Die Trials

Obverse and reverse uniface pattern strikes...

Double Struck Gold Staters of Brutus

A small group of double struck gold staters were discovered...

1865 $1 Indian Gold Proof Triple Struck Reverse

This is the only known proof $1 Indian dated 1865...

Philippine 1 Piso Struck Over Struck U.S. Quarter

This is a spectacular double denomination involving coinage from two countries...

1876 Indian Cent Struck on a 3¢ Nickel Planchet

Indian Cent off-metals are very rare...

Unique 1999 SBA Dollar Struck on an Aluminum Feeder Finger

The only known SBA Dollar struck on an aluminum feeder finger...

Die Trial Splashers Just Discovered

A selection of die trial splashers...

1861 Indian Head Cent Deep Obverse Die Cap

There are only a few known Indian Head Cent die caps...

Martha Washington Nickel

The Martha Washington design has been used by the Mint as an all-purpose test piece since 1965...

1876 Indian Cent Struck on a 3¢ Nickel Planchet

Indian Cent off-metals are very rare...

Off-Center Gold Crown

A Gold Crown from Gebralter of Queen Elizabeth II struck 5% off-center...

1866 5¢ J-517 Double Struck Mule Pattern

This pattern is a deliberate muling of two dies...

Double Struck Double Eagle

This Double Struck Double Eagle was sold in auction by Heritage...

Another Martha Washington Test Piece Discovered

This design has become the U.S. Mint's all-purpose design for testing new compositions and planchet sizes...

Unique 3 Piece Cent and Dime Mated Set

This is an incredible combination of multiple errors...

1983-P Jefferson Nickel Struck on CU Cent Planchet

This extremely rare 1983 Jefferson Nickel TRANSITIONAL was struck on an all copper Cent planchet...

Unique 3¢ Nickel Struck on 1¢ Stock

This is the only known off-metal mint error in the 3¢ Nickel series...

1795 Flowing Hair Dollar Overstruck on 1794 Dollar

To the best of our knowledge, no similar specimen has ever been located or identified...

The Only Known Walking Liberty Half Dollar Off-Metal

This is the only known Walking Liberty Half Dollar struck on a Foreign Planchet for another country...

Mated Pair of U.S. $1 Silver Eagles

A 3M sanding disk adhered to the lower die and was struck into the reverse of the blank planchet...

Unique Cap Bust Quarter Mint Error

Any major mint error in this series is extremely rare...

On the Edge of a Major Discovery

With the underlining reality that these Hong Kong coins have actually been struck on UK coinage planchets with a customary UK reeded/milled edge...

One-of-a-Kind Pieces

The finest error in my Swedish error collection is this 2 Ore 1964 with a struck in tool...

Mint Errors Listed in 1879 Catalogue

It is one of the earliest listings of major mint errors that we've ever seen...

Connecticut Quarter Unique Fold-Over

A fold-over coin is one of the most dramatic types of errors...

Coins Struck on Finger Feeder Tips

After a recent tour of the U.S. Mint at Philadelphia...

PCGS Certifies Two Canadian "Two Tailed" Cents

Both of these "Two Tailed" coins were struck with two reverse dies...

Discovery of Error on Experimental Currency

This note combines the ultimate in rarity with a mistake of noteworthy importance arising on experimental paper...

Double Struck 20¢ Piece

Major mint errors on 20¢ Pieces are unheard of...

PCGS Certifies Unique Jefferson Nickel Die Trial

The only known die trial for the entire Jefferson Nickel series...

1910 Lincoln Cent Uniface Test Strike

It is amazing that there is no reference to this 1910 Test Strike Piece anywhere...

Two Headed Shilling

The first reported and authenticated two-headed English Victorian Shilling...

Unique Quarter Multi Struck on Copper Core

This is a spectacular major mint error...

ANACS Certifies Unique "Two Tailed" Euro Set

This is one of the most exciting mint error discoveries...

3 Decade Old Price List Discovered!

Fred Weinberg just discovered, in a old and dusty file...

U.S. $20 1872 Obverse Die

As incredible as it seems, this is the second $20 Liberty Head Obverse Die to surface in the last two years...

U.S. $20 1882 Obverse Die

This die struck the obverse design of the $20 Liberty Head double eagle gold coin over a hundred years ago...

1920 Buffalo Nickel Struck on Copper Planchet

This is the first and only reported Buffalo Nickel struck on a Full Size Copper Planchet...

Unique Dual Date/Dual State

An unknown type of error until this discovery piece...

2000-P Sacagawea Dollar Struck on a SBA Dollar Planchet

This is a 2000-P Sacagawea Dollar struck on a left over clad Dollar planchet intended for the striking of 1999 Susan B. Anthony Dollars...

SBA Dollar Struck on Experimental Planchet

Four SBA Dollars struck on experimental planchets have been discovered...

Two Headed and Two Tailed Coins

There are approximately thirty known genuine two-headed or two-tailed coins that have been authenticated and certified...

Martha Washington Test Pieces

The U.S. Mint conducted metallurgical tests in 1999 on the golden colored manganese-clad planchets which would later be used for the Sacagawea Dollar...

ANACS Certifies Euro Cent Struck With Two Reverse Dies

ANACS was featured in an article on this coin in the October 7, 2002 Issue of Coin World...

2000-P MA 25¢ Struck on Exp Planchet

This discovery is unique...

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