1988 Calgary Canada Olympics Coin Proof Set Includes 10 Silver Coins OGP & COA for sale. Each coin weighs 34.107 grams and is. 925 Fine Silver so each coin contains 1.01 oz (ASW) of Silver. So the ten coins equates to 10.1 oz os Fine Silver. You will receive the actual coin set shown in the pictures with the COA and the outer white box. Please note that we test all precious metals we sell with a Precious Metals Verifier and/or a Thermo Fisher Niton XL2 Precious Metal Analyzer and verify the weight before listing. Feel free to reach out with questions or for more information.