The Canadian Gold Maple Leaf is the official gold bullion coin of Canada, and the 1 Oz. Gold Maple Leaf is the most common denomination. One of the purest gold bullion coins ever produced, the 1 Oz. Gold Maple Leaf has a millesimal fineness of .9999, thus hardly containing any base metal whatsoever. Introduced in 1979, the 1 Oz. Gold Maple Leaf is produced from gold mined within Canada, is legal tender in Canada, and carries a nominal face value of 50 Canadian dollars.