Greatest Mint Errors News Today

One of the world’s most famous numismatists is undoubtedly Mike Byers. He has been in this line of work for 40 years. Among dealers working in the United States of America, he is the largest one. He is renowned for handling U.S. Gold Coins, Patterns, and Rarities. His work is certified by both PCGS and NGC.

The Heritage Auctions' Platinum Night sales August 15 to 20 will include one of the most eye-catching errors of the U.S. gold coin history and an undated New England shilling for those looking for Colonial issues.

Panama in 1973. In this mated pair, coin #1 is a 1973 Panama Tenth Balboa die struck both sides by the Panama dies on a U.S. clad dime planchet. In 1974, also at the San Francisco Mint, two obverse Lincoln Cent dies, both dated 1974-S, were paired together and installed in the same press. If a copper cent planchet had been struck by this die pair, a two-headed Lincoln cent would have been produced. To date, none have been discovered. This 1973 Tenth Balboa was placed in the collar of the pres...

Undated Three-Piece “Clover Leaf” Eisenhower Dollar — Struck on Clad Dime Planchets — PR68 Ultra Cameo NGC. The word unique is used perhaps too often by error coin catalogers, but it is the single word that best describes the present lot. Three clad dime planchets were simultaneously struck by a pair of Ike dollar dies. The planchets touched but did not overlap, and formed a “clover leaf” pattern with the top planchet centered above the remaining two planchets. Only the 1 in the dat...