1921 Saint Gaudens - 1921 $20 St. Gaudens PCGS MS63. In 1988 David Akers proclaimed the 1921 Saint the "premier condition rarity of the series," a claim that has gone uncontested to this day. The status associated with ownership of a 1921 Saint is matched by few other coins in American numismatics. The vast majority never left the Mint to begin with, and what few remained were almost all melted down during the early 1930's.