Vintage Southwestern Themed Sterling Silver Spinner Ring Size 11

Vintage Mexican Southwestern themed band ring that is a spinner. (Two rings and the stamp decorated one spins around the other. ) The spinner ring has stamp decoration with snakes and Navajo designs. Size 11 and measures 8mm wide. 

It as found years ago on the beach by a man that does metal detecting. It would not spin at first because it had a grain of sand inside. It now moves pretty well. 

Weight: 8.7 grams. Hallmarked inside.