MOUNT RUSHMORE GOLD SILVER 6 COIN SET 1991 MINT IN BOX: 1991 Commemorative proof and uncirculated set by the US Mint in the original box. Set includes 2 $5 gold coins approx. 16.4 grams 90% gold, 2 Silver dollars approx 1.5 troy oz. 90% silver and 2 half dollars. Comes with original packaging and pamphlet about coins.