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 ...

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 1959-D Repunched Mint Mark (RPM) represents the most common error variety. This occurred when workers manually punched the "D" mint mark multiple times in ...

The 2018, which features Queen Elizabeth II on the front and the Nations of the Crown design on the reverse, was minted with an error ...