This U.S. Congressional 2 Coin Set, released in 1989, features a beautiful silver proof dollar and clad half dollar. The set commemorates the 200th anniversary of the United States Congress and is a must-have for any coin collector. The coins are ungraded and come with certification from the U.S. Mint. The silver dollar is made from 90% silver and was struck at the San Francisco Mint. The half dollar also features a commemorative design as does the silver dollar, making this set a wonderful addition to any collection.