The 2017 National Treasures Collection loz SILVER COA Box contains a mixed lot of 5 silver coins, each weighing 1 ounce and struck as business coins. Produced by various mints in Canada, the coins have a fineness of 0.999 silver and are certified by Westminster Mint. This collection offers a total precious metal content of 5 ounces of silver, making it a valuable addition to any coin or bullion collection.