Maple Leaf Reverse Proof Set. Check this weeks auctions for more. The item "2014 Canada 4-piece Gilt Silver Maple Leaf Reverse Proof Set NGC PF 70 #MJ69" is in sale since Sunday, June 7, 2020.This item is in the category "Coins & Paper Money\Coins\ Canada\Commemorative". The seller is "southerncoinco" and is located in Southtown. This item can be shipped to United States.