Collectors looking to expand upon their already impressive library of rare coins may want to purchase American Buffalo gold bullion coins. The American Buffalo coin is the first 24-karat gold coin authorized by the United States Government and created by the U.S. Mint. The coin began its circulation in 2006 and quickly became a sought-after collectible.

Each American Buffalo coin contains approximately 31.1035 grams of pure gold. Its diameter is 1.287 inches with a thickness of 0.116 inches, making it about the same size as a U.S. half-dollar coin.

Many seasoned coin collectors may recognize the American Buffalo coin design from the 1913 Buffalo Nickel that was widely circulated in the United States. The gold version also features images created by American sculptor James Earle Fraser, an artist who graduated with Augustus Saint-Gaudens.

The Native American shown on the face side of the coin is an image inspired by three men - Chief Iron Tail, Chief Big Tree, and Chief Two Moons - who modeled for Fraser as he designed the coin. On the reverse side of the coin, Fraser used Black Diamond, a popular buffalo in the New York Zoological Gardens, as his artistic muse.

Today, collectors revere the design of the American Buffalo gold bullion coin as a symbol of the United States. The coin is an invaluable part of the history of America, and including the gold coin in any portfolio adds a sense of patriotism to the collection.

If you want to add to your coin collection and haven't purchased American Buffalo coins yet, you may want to act now. These coins have the potential to become a national treasure.