Before 1982, pennies were primarily made of copper, with a composition of 95% copper and 5% zinc.
Due to the rising cost of copper, the composition was changed to 97.5% zinc and 2.5% copper in 1982.
Pre-1982 pennies, therefore, contain more copper and are worth more than their face value, especially if they are in good condition.
Look for these older pennies, particularly those without significant wear or damage.
During World War II, copper was needed for the war effort, so pennies were briefly minted in steel instead of copper.
These 1943 steel pennies are relatively rare and can be worth a significant amount, especially in excellent condition.
They are distinguishable by their silver appearance and are often attracted to magnets due to their ferrous composition.