Recently out of a collection of California silver, we believe this pin may have been retailed by Keyston of San Francisco. Exquisitely detailed, this would be statement piece for a cowboy or cowgirl and if you add a loop, it would make one hell of a scarf slide! Marked “STERLING” to the reverse. Measures: 3 1/4” long x 2 1/4” wide. Circa 1940’s.