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 ...

Early issue Peace dollars with errors were part of a November sale by Stack's Bowers Galleries that gave error collectors a ...

What Is the 1963 Lincoln Penny Made Of? The 1963 Lincoln penny is made of 95% copper while the remainder is 5% tin or zinc.

What is a nickel worth? Five cents? What about hundreds of dollars? This year, the United States Mint and the U.S. Federal Reserve are shortchanging the five-cent piece. Usually minting over 1 billion ...