The product is a 1976 MS D Mint Error Bicentennial Quarter, featuring unique mint errors such as Double Die (DDO), Double Strike (DDR), and Misplaced Designer's Initials (MAD). This coin has a denomination of 25 cents, composed of 75% copper and 25% nickel over a pure copper center. Minted in Philadelphia, this business strike coin celebrates the 200th anniversary of the United States. A valuable addition to any coin collection, this error coin showcases the craftsmanship and history of US coinage.