Mike Byers

Dec 9, 2024 | coinweek.com | Mike Byers

By Mike Byers for Mint Error News …… Issue 75 of Mint Error News Magazine is available online and features an extremely rare S-Mint Walking Liberty Half Dollar that was double struck with the second strike off-center. It is one of only three known Walking Liberty Half Dollars double struck at the San Francisco Mint. Published by coin dealer and error coin expert Mike Byers, the magazine brings the latest information to the collector.

Dec 3, 2024 | coinweek.com | Mike Byers

By Mike Byers for Mint Error News ……Issue 74 of Mint Error News Magazine is now available and features an uncanceled Proof obverse die that was made at the United States Mint in Philadelphia and struck Proof gold Costa Rica 1897 2 Colones. This die is a unique numismatic discovery and was previously unpublished and unknown. It was just authenticated and certified by NGC. Published by coin dealer and error coin expert Mike Byers, the magazine brings the latest information to the collector.

Nov 25, 2024 | coinweek.com | Mike Byers

1968-S Kennedy Half Dollar Struck on 125 grain (8.1 gram) Magnetic Planchet * * * There are many major mint errors known on Proof coins issued by the United States Mint–including off-centers, off-metals, double and multiple strikes, bonded coins, and mated coins–but this is the only one known struck on a magnetic planchet. Over my 45 years dealing in major mint errors, I’ve never encountered another U.S. Proof mint error struck on a magnetic planchet.

Nov 18, 2024 | coinweek.com | Mike Byers |David W. Lange

Bolivia 1942 50 Centavos Struck at the Philadelphia Mint on a U.S. War Nickel Planchet * * * This unique mint error coin is a Bolivia 1942 50 Centavos thought to be the only known foreign coin struck on a U.S. War Nickel planchet at the United States Mint in Philadelphia. In 2009, Mint Error News reported this discovery in an article written by Timothy D. Ziebarth, Ph.D., who discovered this unique off-metal error coin.

Nov 11, 2024 | coinweek.com | Mike Byers

19XX-S Walking Liberty Half Dollar Double Struck 90% Off-Center (Actually Struck 85% Off-Center) * * * This is one of three known Walking Liberty Half Dollars double struck at the San Francisco Mint. The other two were sold by Heritage Auctions for $41,125 and $32,900. This double strike is fresh to the market, was not known, and is actually struck 85% off-center, not 90%. It is lightly circulated with original surfaces.