To ensure your 1943 copper penny is not actually steel, do the magnet test. If the coin sticks to the magnet, it's a copper-plated steel, and therefore a fake.

Nearly 46 years ago, NASA launched two small probes carrying a pair of gold-plated copper records that ... all of which were designed as a sort of audio postcard for any potentially intelligent ...

the U.S. Mint has made pennies from copper-plated zinc. Maria Francis is a Pennsylvania-based journalist with the Mid-Atlantic Connect Team.

the make-up of the 1p copper coins was changed and they started to be produced using copper-plated steel instead of the old bronze. But before this happened 78,000 original bronze coins were made ...