Weight(grams): 31.39. Design: The coin showcases Superman standing guard over the city of Metropolis. The reverse is engraved with the word CANADA, the date 2013, and the face value of 20 DOLLARS, as well as 75 YEARS OF SUPERMAN. The image is provided by DC Comics/Warner Brothers. Packaging: Coin is encapsulated and presented acrylic case, and a custom box. PURE SILVER & GOLD COINS GST / HST EXEMPT. Coins are guaranteed to be authentic unless clearly listed in the item description. We will guarantee all our grades to be 100% accurate. If your not happy with our opinion please return the coin within 7 days. Lots must be won within 7 days of each other if you want to use our combining feature. AB, MB, NT, NU, BC, QC, SK, YT. London Coin Centre Inc. The item “Canada 2013 $20 Superman Man of Steel Silver Coloured Coin” is in sale since Tuesday, December 1, 2015. This item is in the category “Coins & Paper Money\Coins\ Canada\Commemorative”. The seller is “londoncoincentreinc” and is located in London, ON. This item can be shipped to Canada, United States.