Unique Green Turquoise Vintage Native Ring Sterling Old Pawn Size 7 JR 13

Really unusual construction on this attractive vintage Native ring. Can you see the brass bezel peeking out around the stone? Quite unique. Nice matrix in the oval turquoise cabochon. All set on a rectangular silver frame with more decoration around the edges.
Good old condition, great patina.
Tested silver. Unmarked like most of the oldies. Original size never altered.
The ring is size 7 and weighs 12 grams. C 1960s
Inventory #JR 13