Authorized by Congress in 1985 and first minted in 1986, American Eagle Gold Bullion Coins are minted according to the durable, 22-karat standard for circulating gold coinage. Each coin contains its full, stated weight of pure gold, which by law, must be taken from newly mined sources in the U.S. The balance consists of silver and copper, added to increase the coin's durability and to help resist scratching and marring. American Eagle Gold Bullion Coins are rich in history, too. The obverse is based on world-renowned American sculptor Augustus Saint-Gauden's design for the prized 1907 $20 gold coin. The reverse pictures a family of eagles, symbolizing family tradition and unity.