Errors increase the value of collectibles because a limited number go into circulation before it is spotted and corrected.

A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and some collectors are paying as much as $10,000 for the affected 25-cent pieces.

Sometimes planchets for one coin denomination are fed into a coin-stamping press equipped with dies of another denomination. This results in a coin that has been stamped with a design intended for a ...

The 1990 penny error coins represent some of the most exciting finds for modern coin collectors. This year marked a significant transition in U.S. Mint production ...

The “Faceless Bat” error represents the most famous mistake on 2020 American Samoa quarters, where debris or grease between the die and planchet obscured the ...

An expert has urged Brits to look out for a valuable 50p coin that could sell for around £50. This piece features a rare error making it worth around “100 times ...

The 1980 penny error coins represent some of the most exciting finds for collectors searching through pocket change. With over 12 billion pennies minted that year ...