Mike Byers

A Stunning Mint Error Emerges from a Long-Held Collection In late 2025, a remarkable discovery surfaced from an old-time mint error collection. Among several rare...

A Discovery That Rewrites What We Know Every so often, a coin surfaces that forces collectors to rethink what is possible. This newly documented 1963...

Original article by Mike Byers in MintErrorNews - Edited and Reformatted by CoinWeek Experimental coins often reveal hidden chapters of Mint history. Occasionally, one surfaces...

By Mike Byers for MintErrorNews In numismatics, discoveries that rewrite the census rarely occur. However, a newly surfaced pair of uncancelled obverse and reverse hubs...

A Confederate-Era Dahlonega Gold Dollar with a Story to Tell In August 2024, an extremely rare 1861-D $1 Gold with a dramatic lamination mint error...

Off-metal errors rank among the most compelling artifacts in American numismatics. Those linked to World War II hold even greater appeal. One such piece...

"Clover leaf" Error By Mike Byers for Mint Error News ...... This remarkable "clover leaf" mint error features a Proof Eisenhower Dollar mated planchet set....

One of the Most Astonishing United States Numismatic Rarities Ever Discovered Some coins stop collectors in their tracks. This 1795 Draped Bust Dollar struck on...

By Mike Byers, Mint Error News Exceptional gold mint errors remain among the most elusive prizes in world numismatics. This newly discovered double-struck Mexican 8...

A Unique 1913 Mint Anomaly That Redefines American Coinage By Mike Byers , formatted by CoinWeek True discoveries in U.S. numismatics are rare. Even rarer are...

This is an amazing mint error discovery from the Carson City Mint! Unbelievably, four Liberty Seated Dime die caps escaped the mint together! There are...

A spectacular, historically significant, unique set of Martha Washington Quarter-sized test pieces, struck circa 1999, offers a rare window into how the United States...

A World War II Lincoln Cent Error - Off-Metal Mystery in Gem Mint State Discovered Key Highlights New discovery: A 1945 Lincoln cent error struck...

Used to Strike Half Dollar Experimental Test Pieces for U.S. Judd #2131-2143 NGC Certified & Encapsulated   ---   UNIQUE in Private Hands Martha Washington dies were used...

Just certified by CAC and unknown to the numismatic community, this Eisenhower Dollar mint error is unique. It has a brockage from an Eisenhower Dollar...

This 1845 British Shilling featuring the likeness of Queen Victoria is a unique Great Britain off-center die cap. This is only the second known...

By Mike Byers... This unique and historic $7 Continental Currency Note, issued on February 17, 1776, is being offered for sale for the first time....

Issue 83 of Mint Error News Magazine is now available, featuring a 1980-D Lincoln Cent struck on a 90% Silver Dime planchet that is in...

Issue 81 of Mint Error News Magazine is now available, featuring a Unique Mated Pair of Sacagawea Dollars as well as exciting rarities in the...

By Mike Byers for Mint Error News …… This is an extremely rare U.S. gold mint error in superb condition. Certified by PCGS as MS66, it's an 1812 Capped...