Turquoise Shiprock Mosaic Inlay Ring in Sterling Silver size 10

Vintage Southwestern sand cast sterling silver ring that is channel inlay set with Turquoise Shiprock mosaic. 

It is a size 10 and the face measures 1 1/8" by 3/4". Weight: 20.4 grams. Solid. Tarnished. No hallmarks. Acid tested. Outer surface has patina with shallw scratching and denting. 

C. 1970