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 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 ...

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

Add Yahoo as a preferred source to see more of our stories on Google. A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and ...

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 ...

The 1943 penny errors represent some of the most fascinating and valuable mistakes in American numismatics. During World War II, the U.S. Mint switched from copper to ...