What is the error on a 1944 penny?

The 1944 penny is notable for a specific error known as the "1944 Steel Penny." This error occurred when leftover steel planchets from 1943 were accidentally used for some 1944 coins, which were supposed to be made of copper. These steel pennies are rare and valuable, as the rest of the 1944 pennies were struck in copper. Collectors highly prize the steel version, making it a significant find for numismatists.