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Bringing the latest mint error news to the collector. Also featuring Die Trials, Patterns, Test Pieces, Numismatic Rarities, Currency Errors and Discoveries from the U.S. Mint.
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Here Is A Complete List Of Over 1,300 Articles From Mint Error News


World's Greatest Mint Errors Published

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

Foreigners in the Mint

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

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

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

Unique 1972-S Lincoln Cent on Struck Silver Dime

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

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)...

UNIQUE GOLD QUARTER

This U.S. GOLD QUARTER is far and beyond the most incredible modern U.S. mint error ever to be discovered...

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...

Unique 1972 Ike Dollar Overstruck Twice With 1972 Cent Dies

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

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...

Error Coin Collection

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

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...

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

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

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...

Bicentennial Ike Dollar Struck on 40% Silver Planchet

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

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...

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...

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...

Modern Jefferson Nickel On Bowtie Scrap

This discovery piece is the only known bowtie clip on a modern Jefferson Nickel struck between 2006-2022...

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...

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...

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...

Unique Double Eagle Reverse Hub Trial in Lead

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

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...

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...

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...

Unique GOLD Buffalo Certified by NGC AU53

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

Ask Dave

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

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...

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...

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...

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...

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...

Unique Triple Struck Flipover Peru Gold 8 Escudos

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

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...

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

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

NGC Certifies $20 Liberty Head Double Struck With Partial Collar

All major mint errors on U.S. gold coins are extremely rare...

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...

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...

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...

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...

Prices Realized For Proof Errors in January 2022 FUN Heritage Auction

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

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...

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...

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 U.S. coinage that occurred during the 1960s and 1970s...

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...

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...

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 U.S. Coins Signature Auction...

Prices Realized in the October 2021 Error Coinage U.S. Coins Showcase Heritage Auction

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

NGC Certifies Unique Proof Ike $1 Broadstruck on a 26g Bronze Planchet

This is a unique and amazing 1973-S Proof Eisenhower Dollar struck on a bronze planchet...

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

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

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...

Mint Error Coin Chronicles: Broadstrikes

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

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

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

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...

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...

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 U.S. Coins Signature Auction...

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...

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...

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

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

Mint Error Coin Chronicles: Partial Collars

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

1968-D Penny Struck on a Silver Dime Planchet

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

PCGS Certifies Unique 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...

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 Errors Featured in July 2021 Error Coinage Showcase Heritage Auction

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

Marc One Numismatics GRAND OPENING!!!

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

Famous 1944 Cent Error Will Make Headlines

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

Previously Unknown Sac/Presidential Dollar Mule Sells In Heritage Auction

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

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...

U.S.Patterns.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...

Prices Realized in the April 2021 U.S. Error Coinage Special Online Heritage Auction

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

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...

David Camire Visiting Mints Around The World

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

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

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

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...

NGC Certifies First Known Sacagawea-Presidential Dollar Mule

The intriguing discovery coin combines an obverse and reverse from two different dollar series...

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...

U.S.Patterns.com - Pattern Mint Errors

Here are some examples of misstruck pattern pieces...

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...

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...

Extremely Rare German 5 Mark Overdate

The most likely scenario is that the Mint used a leftover 1931 dated 5 Mark Oak Tree die...

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

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

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...

Prices Realized in The September 2020 Heritage U.S. Coins Signature Auction

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

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 German Third Reich Matte Proof Set in Silver

It is amazing that this set survived World War II and was preserved for 8 decades...

Error Coin Sidelines George Washington

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

Unique Standard Silver Dime Off-Metal Proof Pattern

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

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...

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...

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...

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...

Not Just Heads Or Tails

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

Unique 1977 Lincoln Cent Struck in Aluminum at The Philadelphia Mint

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

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

The following coins are in the August 2020 Error Coinage U.S. 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 U.S. Coins Signature Auction #1316...

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 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...

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...

Unique Pair of California Fractional Gold Clipped Planchets

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

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 Pattern 25¢ Major Mint Error

Major Mint Errors on Proof U.S. coins are rare...

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...

Unique American Bank Note Company El Salvador Stamp Printing Plate

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

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...

Unique 1974-S Aluminum Cent

The Only 1974 Aluminum Cent that can be Privately Owned...

1938 New Rochelle Half Dollar PCGS Specimen 67+ CAC

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

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

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

NGC Certifies Unique 1952 Great Britain Penny

The only penny struck by the Royal Mint in 1952 is a numismatic unicorn...

Prices Realized in the April 2020 Error Coin Online Heritage Auction

The following coins sold in the April 15, 2020 Error Coinage U.S. 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 U.S. Coins Signature Auction - Dallas #1314...

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...

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...

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...

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...

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 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...

Uncommon Walking Liberty Half Dollar Error Up For Bid

Considered by many to be one of the most attractive and artistic U.S. 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...

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...

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...

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...

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...

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...


Here Is A Complete List Of Over 1,300 Articles From Mint Error News

Resources




Submit Content

We encourage all collectors and dealers to submit their articles, discoveries and scans of their certified major mint errors to us for review and publication. Please make sure you have copyrights to any content that you submit. Your article may be subject to revision. Thank you and enjoy the website.

Please send all images with a minimum resolution of 300 dpi. Please submit all content to:

editor@minterrornews.com


Frequently Asked Questions

q.

I have a pattern, die trial or test piece that has been in my collection for years. What it the best way to sell it?

a.

You can find articles on patterns, test pieces and die trials on Mint Error News. Some of these articles are on discovery pieces, prices realized or other related topics. Another website which exclusively reports on U.S. patterns, die trials, test pieces, splashers, hub trials and other unique numismatic items is uspatterns.com. Andy Lustig and Saul Teichman are the two co-founders of this website and club. You can contact Andy regarding a U.S. Pattern or Die Trial at editor@minterrornews.com.

q.

How do I subscribe to Mint Error News Magazine?

a.

Due to the overwhelming demand of Mint Error News Magazine, all printed copies have been mailed! Click here for links to the Online Versions of Mint Error News Magazine.

q.

I have a two headed coin. Is this a rare mint error? If so what is it worth?

a.

What you have is called a "magician's coin." This is a novelty piece and can be purchased at a magic shop. These have no numismatic value and are for entertainment only. There are approximately thirty genuine two-headed or two-tailed coins that have been authenticated by ANACS, PCGS and NGC. There are only four known "Two Tailed" U.S. coins: three Quarters and one Dime. One of the Quarters recently sold for $80,000. Two of the world coins are Canadian Copper Cents that were struck with two reverse dies and authenticated by PCGS. These were part of a Canadian Mint Error Collection and they have since been featured in a front page Coin World article.

q.

I think I found an error coin, what type of errors are there? Where can I quickly look up information?

a.

Visit CoinFacts.com. This Internet Encyclopedia has descriptions, explanations and pictures of the many different types of errors.

q.

I've been collecting mint error coins for years and want to have my collection certified. How do I go about doing this?

a.

There are three major third party grading services that authenticate, certify and encapsulate mint errors:
1. ANACS - ANACS has been certifying major mint errors for thirteen years. They have an excellent track record and have slabbed many of the finest errors in the world. Thousands of mint error collectors rely on ANACS's reputation to certify their mint errors.
2. PCGS - PCGS is one of the largest third party grading services and started certifying mint errors in March of 1999. They are located in California.
3. NGC - NGC is one of the largest third party grading services located in Florida and have been certifying mint errors for two years.

q.

I collect mint error coins but I am confused by some of the abbreviations used by the grading services when describing the error. Could you please help me out?

a.

Here is the generally accepted list, and primarily used by ANACS, PCGS & NGC:
O/C - off center, D/S - double struck, T/S - triple struck, M/S - multi struck, F/O - flipover, B/S - broadstruck, DBL DENOM - double denomination, CB - counterbrockage, FRAG - fragment, BROCK - brockage, TRANS - transitional, EXP - experimental, PLN - planchet, TR - trial, ADJ - adjustment, STK - struck, PC - partial collar, BND - bonded, MTD PR - mated pair, T1 - type 1.

q.

I found a coin that shows doubling of the letters, design and portrait. Is this a double die or a double struck coin?

a.

What you most likely have is a coin with mechanical doubling, ejection doubling, or strike doubling. This is very common and has little or no value as a mint error.

q.

I just found a State Quarter that looks like it's golden or brass. Is this made out of the same metal as the new golden dollar?

a.

Chances are your State Quarter has been plated after it left the Mint. Check to see if the edge is the same color as the rest of the coin. If it is the same color, the coin has been plated. If the edge is copper colored you might have genuine a mint error. Please e-mail a picture to allow us to evaluate your coin. There are approximately 15 known 1999 State Quarters struck on Experimental Planchets. All five states in the 1999 series (DE, PA, CT, GA and NJ) have been discovered. These Experimental State Quarters have sold for as high as $10,000 each, depending on which state, the coin's condition and which type of experimental composition was used. There are four known types of experimental compositions which have been discovered so far on 1999 State Quarters.

q.

I found a penny (nickel or dime) that looks slightly misshaped or a little off-center. Is this error worth anything? How can I sell it?

a.

Most minor errors on the smaller denominations are common and are only worth a few dollars. Either keep it as a souvenir or sell it on eBay.



Related Links


mikebyers.com
Mike Byers Inc is one of the largest numismatic corporations dealing in U.S. Gold, Patterns and rarities certified by PCGS and NGC.

uspatterns.com
An interesting web site featuring United States Patterns, Die Trials and Mint Errors.

Heritage Auctions
The World's #1 Numismatic Dealer & Auctioneer.

PCGS
One of the largest coin grading and authenticating services.

NGC
One of the largest coin grading and authenticating services.

ANACS
One of the largest coin grading and authenticating services. ANACS has been certifying mint errors for over thirteen years. They were the first major grading service to encapsulate mint errors.

CONECA
The Combined Organizations of Numismatic Error Collectors of America.

American Numismatic Association (ANA)
A nonprofit, educational organization chartered by Congress dedicated to the collection and study of coins, paper money, and related items. This is the largest coin organization in the world.

eBay Auctions (Mint Error Coins)
The largest auction site featuring mint errors.

Coin World Online
The largest numismatic newspaper in the industry. The latest news and discoveries on mint errors can be found here.

CoinFacts.com
The internet encyclopedia and price guide of United States coins. A great resource for information on mint errors.

CoinWeek
The premier portal for rare coin & currency web sites, numismatic news, coin resources, coin collecting supplies, and more.


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