All are 1 Troy oz of 92.5% Silver a total weight of 9.25 Troy ounces. The item "1988 Canadian Mint 10 Coin Calgary Olympic Silver Proof Set Canada Olympics COA" is in sale since Thursday, August 28, 2014. This item is in the category "Coins & Paper Money\Coins\ Canada\Mint Sets". The seller is "odysseycoins1" and is located in Everett, Washington. This item can be shipped to United States.