This is a wonderful vintage equestrian pin or brooch which has a unique image of a horse head underneath a glass dome. It is composed of sterling and M.O.P. with an intaglio design of the horse head. The condition of the pin is very good and clasp works perfectly fine. It is marked sterling on the back. The date of this item would be 1930' or 40's. Dimensions: It measures approx. 2 5/8" in length and 5/8" in width.