Sterling Silver Horse Brooch Pin. A perfect gift for any equestrian, this brooch depicts three horses in bridle and reins ready for the Triple Crown races. This realistically designed brooch measures 2.5 inches across and 0.75 inches high. It closes with a rollover clasp which is tight and secure. We have not polished this piece but will do so upon request of new owner. This estate horse brooch is in very good condition.