The United States Mint ... rare 1943 penny, here are some key features that will help you determine if you have the rare copper version. Check the Material Beware of Altered Coins: Some steel ...

During World War II, the U.S. Mint switched to zinc-coated steel ... of 1943 pennies were mistakenly struck in copper, making them exceptionally rare. Among these, the 1943-S Wheat Penny ...