Carat (mass) quarters" of 15 grains troy each. Likewise, the ounce troy was divisible into 24 "ounce carats" of 20 grains troy each; the ounce carat was divisible into four "ounce grains" of 5 grains troy each; and the ounce grain was divisible into four "ounce quarters" of grains troy each. The "solidus" was also a Roman weight unit. There is literary evidence that the weight of 72 coins of the type called "solidus" was exactly 1 Roman pound, and that the weight of 1 "solidus" was 24 "siliquae". The weight of a Roman pound is generally believed to have been 327.45
Actual silver weight $15.00 per troy ounce, the intrinsic value of a pre-1965 Roosevelt dime would be: 0.072339075 × 15.00 = $1.085086125 ≈ $1.09. (Note that coin stores, pawn shops, and bullion retailers will not necessarily purchase coins from consumers at the intrinsic value because of the costs involved with selling such coins to companies that melt the coins, separate the constituent metals, and prepare the silver for resale.) Actual silver weight Actual silver weight, usually abbreviated ASW, refers to the weight of pure silver contained in a coin, measured in troy ounces. Coin collectors, individuals who invest in bullion coins, and others