Chunky Old Navajo Ring set with Kingman Mine Turquoise Size: 12

Vintage hand made Navajo sterling silver ring set with 3 Kingman Mine turquoise stones. Nice fan design with raindrops. Size: 12 Face is 1" wide. Is well worn and has some thinning at the back of the band with some out-of-round spots. 

Weight: 19 grams. No hallmarks. Acid tested. This came to me by way of the family of the original owner.