"Bullion" is a term that refers to precious metals which are made, bought, or sold for the value of its metal content, not a special historical, collectable or numismatic value. While some bullion will carry a small premium over other forms of bullion (e.g. 1 oz coins versus 100 oz bars), the idea is the same — the coin or bar simply represents the weight and purity of precious metal which was stamped on the surface of the metal.