Collectors have long known that small minting mistakes can turn pocket change into serious money, and the 1983 Washington quarter is one of the clearest examples. A spectacular error from that year, ...

CoinKnow stands out as one of the most advanced free coin identification applications available today. Launched in 2025, this app leverages sophisticated AI to analyze coins through your smartphone ...

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 ...

An overflowing change jar is a sign that your coins need a new home. This can mean moving your spare quarters and dimes to a bigger jar; or, even better, checking to see if you have any valuable coins ...

Curious about alternative investments like valuable quarters? Find out how to invest in the different asset classes today. While most quarters are worth just 25 cents, some can be worth much more due ...

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 ...