Finish: Proof (Some coins might be lightly toned). Composition: 92.5% Silver. Weight(grams): 34.07 (1 oz Actual Silver Weight per Coin). Design: The coins showcase, 10 different winter olympic sports. Packaging: The coins are encapsulated, and presented in a green clamshell dysplay case. The set includes a certificate. 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 1985 1988 $20 Calgary Olympic Silver 10 Coin Set” is in sale since Wednesday, October 26, 2016. 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, to United States.