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 are a rare coin collector, you know that it’s not always the perfect coins that are the most valuable. There are many criteria that make a coin worth lots of money in today’s currency, as well ...

Plus, we explain how to sell rare coins for profit YOU could cash in on thousands of pounds just by sifting through your change if you know which details to look for. Rare minting errors on coins such ...

A Royal Mint 50p coin has sold for more than 350 times its face value at an online auction because of a rare error. The coin, a 1981 Queen Elizabeth II 50p coin ...