The product is a circulated 1979 Small Cent penny from the United States minted in Denver. It features a unique error with a repunched mint mark and a reverse die crack running from the top to the bottom of the coin. The coin is uncertified and has a red (RD) color, struck as a business coin. This error coin is a collectible piece for those interested in numismatics and error coins, adding a distinctive element to any collection.