Sets include downhill skiing, Biathalon, ski-jumping, Hockey, Bobsled, Free-Style skiing, curling, cross-country skiing, speed skating, and figure skating. All one ounce silver proof coins.The item "Set of 10 1 ounce Silver Proof Canada Coins1988 Calgary Olympics $20" is in sale since Wednesday, January 22, 2020. This item is in the category "Coins & Paper Money\Coins\ Canada\Commemorative". The seller is "mullencoins" and is located in Ada, Michigan. This item can be shipped worldwide.