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 ...

Some of the rarest and most valuable coins in U.S. history owe their worth to minting errors that slipped through unnoticed. Coins like the 1943 Copper Penny, struck in copper instead of wartime steel ...

If you've got a coin collection, it's time to check every detail. That's because you could be sitting on a small fortune if you locate a rare coin in your stash. Previously, rare coins which could ...

A rare King Charles III £1 coin could be worth thousands of pounds after an error was discovered on it. The £1 piece has been spotted by online coin enthusiasts ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...