1991,KM-230 Country United States Year 1991 Value 5 Dollars (5 USD) (5 USD) Metal Gold (.900) Weight 8.359 g Diameter 21.6 mm Commemorative issue Mount Rushmore Golden Anniversary Obverse American eagle in flight over Mount Rushmore. Lettering: LIBERTY 1991 Engraver: John M. Mercanti John M. Mercanti is an American sculptor and engraver. He was the twelfth Chief Engraver of the United States ...