Vintage Sterling Silver and Garnet Dimensional Horse Head Stick Pin

This sterling silver horse head stick pin is absolutely stunning! The horse head is detailed and dimensional, with flowing mane and sparkling red garnet eyes. His mane cascades around his neck and he has tiny, tippy ears..must be a stallion instead of a mare! There is a hint of gilding on his mane, and looking at the back of the stickpin, I think the brooch was vermeil at one time. The brooch is unsigned and acid tests as sterling silver. The head measures 1 1/8" long by 1" wide and the total length is 2 1/4".