If you've ever gotten into coin collecting, you likely have looked up values of rare ones that could still be in circulation.

Brits have been advised to search their wallets and coin jars for a rare misprinted coin that could be worth £1,000.

Auction record: $6,995 This rare coin is notable because it doesn’t contain a mint mark; the U.S. Mint deliberately didn’t include mint marks on coins produced from 1965 to 1967, to limit coin ...

The limited edition coins were handed out to Australians who paid in cash in Woolworths supermarkets across the country. As ...

Of course, most super rare coins are already in someone’s collection and don’t go up for sale ... In 1982, the Philadelphia Mint made some Roosevelt dimes without the “P” mint mark. It’s estimated ...

Roosevelt so valuable is a missing "S" mint mark for San Francisco, one of just two without the mark known ... "proof" sets in 1975 that featured six coins and were sold for $7.

Several factors can make American coins rare and valuable, including mint errors (like overstamp or double die errors), mint marks and specific dates. Coins with mint errors are often the most ...

Rare coins with minting errors or other unique features tend to bring high prices, as do those in mint or near-mint condition. As The Spruce Crafts noted, many collectors of U.S. coins began with ...