Add Yahoo as a preferred source to see more of our stories on Google. Penny production in the U.S. is grinding to a stop. More than 3 billion pennies were minted in the U.S. last year, but according ...

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 steel ...

Wheat pennies with errors are among the most highly valued coins out there for any collector. The errors range from double-die casting to steel cent striking mistakes, all made by the U.S. Mint. The ...