Coin Error & Variety Guide
Learn about the different types of U.S. coin errors and varieties. Each guide explains how the error occurs during the minting process, how to identify it, and what collectors look for when evaluating specimens.
Doubled Die Family
6 error types
Errors caused by misalignment during the die hubbing process, creating doubled design elements on the coin.
Die Damage Family
17 error types
Defects resulting from physical damage to the die, including cracks, breaks, chips, and cuds.
Die Clash Family
8 error types
Errors occurring when obverse and reverse dies strike each other without a planchet between them.
Hub/Punch Errors
9 error types
Varieties created during the hubbing or punching stages, such as repunched dates, mint marks, and overdates.
Planchet Errors
6 error types
Defects in the blank coin planchet before striking, including clips, laminations, and wrong metal errors.
Strike Errors
10 error types
Errors occurring during the actual striking process, from off-center strikes to broadstrikes and multi-strikes.
Collar Errors
2 error types
Defects caused by problems with the collar die that forms the edge of the coin during striking.
Other
6 error types
Miscellaneous varieties and error types including trail dies, transitional designs, and VAM varieties.
Looking for a specific coin error? Browse our catalog of 72,000+ listings