In 1907, the Saint Gaudens twenty dollar gold coin (or double eagle) and the ten dollar gold coin (or eagle) were introduced. Considered to be among the most beautiful coins ever produced in the United States, it ushered in the "golden age of coins," in which Theodore Roosevelt sought top artists to improve US coinage.
Thiis site provides information about the Saint Gaudens double eagle,the eagle, and the modern bullion coins (American Eagles) with the same design.