troyounce,

troy ounce vs regular ounce
2 silver bars of 1 troy ounce valcambi (2 different types) with
2 silver bars of 1 troy ounce valcambi (2 different types)
10 troy ounce .999 silver bar sunshine minting inc.
2 silver bars, 1 x 1 troy ounce bar and 1 x 1 troy ounce star