2005 Canada Tulip Maple Leaf Silver. Key date for 1 oz maple leaf. The item "2005 Canada Tulip Maple Leaf Silver Key Date 3500 Mintage Rare" is in sale since Thursday, February 20, 2020. This item is in the category "Coins & Paper Money\Coins\ Canada\Commemorative".n" and is located in Diamond Bar, California. This item can be shipped worldwide.