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 ...

That scarcity at the top end shows up in auction records and price guides. A detailed collector’s guide to the 1983‑P Washington quarter notes specific certified examples, such as NGC MS67 ...

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 ...

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 ...