Navajo Turquoise Ring Sterling Silver by Scotty and Betty Platero

Vintage Navajo ring made by Scotty and Betty Platero. This ring is hallmarked inside the back of the band. 

It is sterling silver and the design suggests a bug. It is set with two nugget turquoise stones. Nice strong hammered cold chisel split shank.  

Size: 8 1/4. Face measures 1 5/16". Weight: 8 grams. Some tarnish. Not marked with metal purity. Acid tested. Well made piece.