The product is a 1974 S Lincoln Penny with a mint mark error, in good condition. It is a circulated coin made of copper, featuring the Lincoln Memorial design. This particular coin was minted in San Francisco and is of business strike type. The coin is not certified, and it originates from the United States. As a piece of US coinage history, this 1974 S Lincoln Penny with mint mark error is a valuable addition to any collection.