The Canadian Silver Maple Leaf is 1 troy oz of silver. The purity of the coin is 99.99% silver.
Because of its fine silver purity (.9999), its flawless quality and its appealing design, the Canadian Silver Maple Leaf has become the preferred coin for many investors around the world today.

The American Silver Eagle is the official silver bullion coin of the United States. First released on November 24, 1986, it is struck only in the 1 troy oz denomination. It has a nominal face value of one dollar and is guaranteed to contain one troy ounce of 99.9% pure silver by the United States Mint.

The Gold Sovereign was first issued in 1489 for Henry VII of England.
While the coin typically had a nominal value of one pound sterling or 20 shillings, the Sovereign was primarily an official piece of bullion with no mark of value anywhere on the coin itself.