The 1979-D Kennedy Half Dollar with Multiple Errors is a circulated coin minted in Denver with a composition of 91.67 Copper and 8.33 Nickel. It features various varieties such as Strike Through Grease (STG), Filled in Mint Mark, Peripheral Die Damage (DDD), and Die Deterioration Doubling (DDD). This unique coin is ungraded and uncertified, making it a valuable addition to any coin collection. Plus, if you purchase this item, you'll receive a free coin as a bonus.