@numismatist.coins: Got a copper 1943 penny? 👀 1943 pennies were made of steel, but a few were struck on copper by mistake. Only about 20–30 are known, and real ones have sold for $100K+. Test yours with a magnet! Scan your coins with CoinMap, link in bio 📲 #coins #coincollecting #errorcoins #1943penny #wheatpenny #lincolncent #numismatics #coinmap