This is your chance to get the best price on. A beautiful collection complete with a velvet type clam shell case. Silver Content: One Troy Ounce. These coins were one of the first in Canada to have lettering impressed into the edge of the coin. The item “Canada Set of 10 1oz Silver $20 dollar Calgary Winter Olympic Coins” is in sale since Monday, February 19, 2018. This item is in the category “Coins & Paper Money\Coins\ Canada\Commemorative”. The seller is “bruce8422″ and is located in Calgary, Alberta. This item can be shipped to Canada.