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

A full list of the top 10 “error coins” in the US has been published by SD Bullion, the precious metals dealer. The “most valuable” coin on the full sold on ...

SD Bullion, the gold and silver deals, has published a list of the most valuable error coins in the USA. One of the most expensive coins they listed once sold for ...

All too often, coin collecting is a squinter's game. Training your eye to spot rare and valuable coins in your spare change might make you some serious money, but it could also seriously damage your ...