The 1978 D Washington Quarter is a United States coin minted in Denver in uncirculated condition by the U.S. Mint. The quarter features George Washington on the obverse side and is composed of clad materials. This particular coin does not have a specific KM number associated with it, but it is part of the Washington series of quarters issued from 1932 to 1998. The coin is a standard business strike and is a valuable addition to any coin collection.