The Royal Canadian Mint’s Gold Maple Leaf (GML) coins are among the world’s most popular pure gold coins, having sold more than 25 million troy ounces since their introduction in 1979. The GML was also the first bullion coin to achieve the superior standard of 99.99% purity. The 1/2 oz GML has a $20 dollar face value and come in a variety of years. (GMLH)