Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in ...

Planchet errors mean they might have the wrong shape or thickness, or no engraving at all Strike errors ... struck on the wrong coin. Most of the coins on this list were minted in the U.S ...

Consider this list of the most valuable coins in circulation as your go-to guide to sorting through your coins before you put ...