Small Harvey Era Black Turquoise Whirling Logs Vintage Ring Old Pawn Size 5 1/4

Super unusual small early ring. Love all the evidence of handwork not usual in the Harvey Era. Unusual black turquoise. Great stamping including whirling logs.
Good old condition, great patina.
Tested silver. Unmarked like most of the oldies. Ring shank is cut in the back to be adjustable.
The ring is size 5 1/4, and weighs 3 grams. Face is less than 1/2" tall. C 1940s
Inventory #JR 805