Vintage Solid Copper Indian Ring with Faux Turquoise

Vintage solid copper Southwestern Indian ring with faux turquoise. It is stamp decorated but there is quite a bit of smooth wear to the metal. Size 5 1/2. C. 1960s. 

This came to me from a man that found a large amount of rings on the beaches of Mexico and Southern California with a metal detector. The majority of them are from the 1970s and early 1980s.