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 ...

The state quarters program, which ran from 1999 to 2008, inspired many new coin collectors, and some of those quarters are ...

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 ...

The coin, which features Queen Elizabeth II on the front and the Nations of the Crown design on the reverse, sold for well ...

Brits have been urged to keep an eye out for a highly valuable £1 coin in circulation. This piece has reportedly sold for £2,500 in the past. But it needs to feature a tiny error to be particularly ...

A coin collector has urged people to "stop right now" and check their loose change as they could be carrying thousands of pounds without even knowing. A rare 2p coin dating back to 1983 has been ...