2019 40th Anniversary of Gold Maple Leaf. Original condition encapsulated with certificate authenticity & case/box. The item "2019 40th Anniversary Gold Maple Leaf GML $20 1OZ Silver Proof Coin Canada" is in sale since Wednesday, March 6, 2019. This item is in the category "Coins & Paper Money\Bullion\Silver\Coins". The seller is "mario95coin" and is located in Ontario. This item can be shipped worldwide.