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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...

Error Coin Collecting Opportunities For 2017

The year is off to a good start in our opinion, with our sales being brisk, major auction results looking relatively strong, and overall good activity in the market...

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...

The Baltimore Coin Show & the Coin Market

We’re finally catching up after a busy Baltimore coin show...

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...

Baltimore Coin Show Report - July 2016

The Baltimore Whitman coin show was a decent show this July...

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...

Coin Show Report: Baltimore Whitman Expo April, 2016

This coin show held every Spring, is one of our regular shows which we attend every year...

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...

Using Auction Prices Realized For Error Coins

Auction results show the price that multiple individuals bidding against each other decided a coin is worth...

Prices Realized In The January 2016 FUN Heritage Auction

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

Error Coin Market Update - December 2015

The error coin market has been very active lately...

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...

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...

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...

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...

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...

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...

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" & Winsonsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Winsonsin 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...

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...

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...

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

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

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...

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...

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...

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...

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...

Mint Error Collection Sold

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

Overlooked Error Coin Series

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

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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' 2007 Catalog

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

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

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

Spectacular Mint Errors Sold In Recent Heritage Galleries Auctions

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

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...

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...

“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...

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...

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...

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...

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 #15 CLOSES JULY 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...

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...

A Study of World Mis-Struck Coins

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

Unique Errors Featured in Upcoming Heritage Auction at Central States

From the Heritage Galleries Auction Listings...

Jim’s Coins Error Auctions

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

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....

Jim’s Coins Error Auctions

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

Mike Byers' 2006 Catalog

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

January 2006 Mint Error & Die Trial Auction Prices Realized

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

Foreign Coinage Production Figures

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

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...

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...

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...

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...

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" & Winsonsin Quarter "Extra Leaves"

Some recent sales of Buffalo Nickel "Speared Bison" and Winsonsin 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...

How HOT is the error coin market?

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

1975 Catalog & Price List

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

Jim’s Coins Error Auctions

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

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

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

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...

Canadian on Foreign Overstrikes

A collection of Canadian mint errors...

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...

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...

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...

A Report on the ANA and Mint Errors

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

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...

Off Center Errors

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

Mike Byers' 2005 Catalog

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

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...

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...

World Mints Deface Coins With “Waffle Designs”

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

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...

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...

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...

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

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

A New Book By Mike Byers

Coming Soon: Mint Error Guide...

Martha Washington Dime Sells For $51,750

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

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...

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...

U.S. Mint Uses Schuler Presses

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

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...

Foreigners in the Mint

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

Why Do You Collect Error Coins?

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

NGC Certifies Unique Martha Washington Cent Test Piece

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

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...

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...

Minterrornews.com Announces A New Price Guide Section

Check it out...

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...

Minterrornews.com welcomes Error World Club As Sponsor

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

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

Here are the prices realized...

Pattern or Mint Error?

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

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

Featured are many major mint errors including...

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...

(2) 1943 Copper Cents Featured In Goldberg Auction

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

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...

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...

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

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

“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...