Vintage Native American Navajo Turquoise Coral Inlay Sterling Silver Ring 5.75

This is a striking vintage Navajo inlaid silver ring. This ring contains beautiful channeled chip inlaid turquoise and coral stones. Bordering the stones are phenomenal silver wave works and sun stampings, so amazing. I love how thick and sturdy this ring is and how it graduates in width towards the front of the ring.  Mid century. There a makers mark in the ring. I have been unable to determine maker. See photos for condition and size