1991 US Mount Rushmore Two (2) Coin Commemorative Silver Set The United States Mint certifies these coins as genuine United States Mount Rushmore Commemorative Coins, struck in accordance with legislation passed by Congress and signed by the President on July 16, 1990 into Public Law 101-332. These coins were produced by the United States Mint to commemorate the 50th Anniversary of the Mount Rushmore National Memorial. These coins are legal tender of the United States. Coins in this set include: * 1991-S US Mount Rushmore Silver Dollar Proof Obverse: Mount Rushmore Memorial wreathed in laurel Reverse: Heraldic Eagle Crest over a map of the United States * 1991-S US Mount Rushmore Clad Half Dollar Proof Obverse: Mount Rushmore Reverse: The American Buffalo With COA Original US Mint Box