The overlay design is ornate, unusual and very well executed. The Hopi Crafts hallmark indicates this piece was made in the shop of the same name, previously known as Hopi Enterprises. This hallmark was used from 1962 through 1983. I haven’t been able to identify the artisan hallmark (LP). Ring is a size 6.25, weighs 9 grams, the face measures 1.25” by 5/8”. The shank is a single half-round wire circle which is a standard Hopi attribute. Very crisp and clean overlay cutout. Excellent vintage condition with warm age patina.