A rare Royal Mint 20p coin fetched £68 on eBay after sparking a bidding war. The "mule" coin, minted in 2008, sold for 340 times its face value. This coin is considered rare because it was produced ...

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 ...

A RARE 50p coin has sold for nearly £200 in fierce eBay bidding war – do you have it in your wallet? The 50p, which features ...

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An unknown number of new George Washington dollar coins were mistakenly struck without their edge inscriptions, including “In God We Trust,” and are fetching around $50 apiece online. The properly ...

It looks like the U.S. Mint has struck again -- or actually, not struck again. Some of the new dollar coins featuring John Adams are missing edge inscriptions including "In God We Trust," according to ...

We are all being urged to check our change for an “extremely rare” 50p coin with an error that makes it incredibly valuable. The Royal Mint 50p coin in question ...