The standard weight is 31.1035g (1ounce). The nominal pure silver content of one-dollar bear silver coin is 99.99%, which means that each silver coin contains pure silver 31.1035g * 99.99% = 31.089g.. Canadian Dollar Bear Silver Coin is issued by Royal Canadian Foundry. First published in 1988. The coin has a picture of Queen Elizabeth II on the front and a bear on the back.