Specifications: Each American Buffalo coin contains exactly one troy ounce (or 31.1035 grams) of pure gold. Its diameter is 1.287 inches (or 32.70mm), with a thickness of 0.116 inches (or 2.95mm), making it approximately the same size as a U.S. half dollar coin.
Authorized by Congress through the Presidential Coin Act of 2005, the gold American Buffalo was first minted in 2006, and more than 300,000 of the coins were produced and sold that year.Unlike the American Gold Eagle, which is 22-karat (or .9167 fine), the American Buffalo is the United States' first large-scale circulation of a .9999 (or four-nines) fine gold coin in the Mint's history.
The obverse side of the gold American Buffalo features the profile of a Native American man, while the reverse side features the silhouette of an American bison standing in profile, modeled after "Black Diamond," a popular attraction in the New York Zoological Gardens in the early part of the 20th century. The coin's images were originally created by the American sculptor James Earle Fraser. The images were originally featured on the popular "Indian Head" or "Buffalo" nickel, minted in the U.S. from 1913 to 1938.
The gold American Buffalo has a face value of $50 (same as the American Gold Eagle) on the reverse side of the coin, is minted at the United States Mint in West Point, New York, but does not feature any mint mark. By law, all of the gold used in the production of the American Buffalo bullion coin must be from newly-mined sources within the United States.
