Lucite and Bakelite Horsehead Pin Brooch. This wonderful old brooch has a clear background with a black horse's profile on the front. The horse's head is set on a background of clear lucite. This vintage piece measures approximately 2 1/4" by 1 3/4" and is in good vintage condition. The pin-back shows some typical age marks. The black silhouette is fixed on to the transparent lucite; the brooch's original clasp keeps it securely in place.