A rare 2001-D Lincoln cent, a "mule error" coin with a dime reverse, has fetched over $100,000 at auction. This unique coin, created by a minting mistake in Denver, features Abraham Lincoln on the ...

A rare $1 coin with a distinctive “double rim”, the result of a printing error at the Mint back in 2000, is today worth an actual mint to collectors. According to ...

There used to be a saying — “pennies make dimes and dimes make dollars” — that stressed the importance of saving your money (the phrase later showed up in a country song). Today, some Lincoln pennies ...

A mule in the animal kingdom is the result of mating a male donkey with a female horse, but a mule in the coin and currency world is the result of the pairing of two dies or printing plates that were ...

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 rare Royal Mint 20p coin has sold for 350 times its face value on eBay after inspiring a bidding war this week. The 20p piece is a “mule” coin dating from 2008 ...

The next time you have a £2 coin remember to check it closely - as it could bag you a small fortune. The Coin Collector UK explained in one post: “One of these £2 coins sells for £1,240. So the one ...

Brits have been urged to check their change for a seemingly ordinary coin that could be worth 300 times its face value. According to an expert a number of 20p pieces ...