9999 Fine Silver Bullion Coin. You are purchasing a 1991 Canadian Silver Maple Leaf bullion coin, struck by the Royal Canadian Mint. This coin contains 1 troy ounce of. 9999 fine silver, making it one of the purest government-issued silver bullion coins in the world. Weight: 1 Troy Ounce (31.1g). Not sealed (coin is loose, not in original packaging). Overall nice bullion example – see photos for exact condition. Obverse: Queen Elizabeth II portrait. Reverse: Iconic Canadian Maple Leaf design. Perfect for investors, stackers, or collectors looking to add a classic early-date Maple Leaf to their silver holdings.