Why are my 1 ounce silver coins different sizes? I have 2 silver coins. One says 1 Troy ounce, the other says 1 ounce. They are both .999 fine silver, yet the
![Amazon.com: 1 oz One Troy Ounce USA American Buffalo .999 Fine Titanium Bullion Bar Ti Element : Automotive Amazon.com: 1 oz One Troy Ounce USA American Buffalo .999 Fine Titanium Bullion Bar Ti Element : Automotive](https://m.media-amazon.com/images/I/41f2yxnbSnL._AC_UF350,350_QL80_.jpg)
Amazon.com: 1 oz One Troy Ounce USA American Buffalo .999 Fine Titanium Bullion Bar Ti Element : Automotive
![Amerikai Egyesült Államok 1987. 1 Uncia Ag 'Liberty' dísztokban (39mm/0.999/31,48g) T:1,1- USA 1987. 1 Troy Ounce 'Liberty' in case (39mm/0.999/31,48g) C:UNC,AU Amerikai Egyesült Államok 1987. 1 Uncia Ag 'Liberty' dísztokban (39mm/0.999/31,48g) T:1,1- USA 1987. 1 Troy Ounce 'Liberty' in case (39mm/0.999/31,48g) C:UNC,AU](https://static.darabanth.com/images/2/3/2349371a.jpg)