The $20 Saint Gaudens Gold coin, designed by Augustus Saint-Gaudens, was minted by the United States between 1907 and 1933. The 1909 San Francisco mint mark variety is particularly sought after by collectors due to its lower mintage and artistic design, which showcases Lady Liberty on the obverse and a soaring eagle on the reverse. This coin is composed of 90% gold and 10% copper, weighing approximately 33.41 grams with a diameter of 34 mm, making it a prominent piece in American numismatics. The Saint Gaudens gold coins are significant for their historical context and artistic merit, contributing to their high collectible value.

Item Denomination Series Year Mint
1909-S $20 $20 (Twenty Dollars) $20 Saint Gaudens Gold 1909 San Francisco