Mokume Gane, Wave Pattern/Sterling Silver Double Ring.
Made from 21 Layers: Sterling Silver/Copper/5% Shibuichi.
The alloy shibuichi, contains 5% fine silver in a copper base.
Size: 7 3/4 (U.S.)
Size: P 1/2
Ring: 6 mm wide x 1.5 mm thick.
0.23 in x 0.05 in.