6 Bridle Pins. Bridle Pins Originated in Ancient Rome when they were called Rosettes. They were basically Horse Jewelry, Ornaments to Dress Up the Bridle of a Horse. These 19th Century Examples Are Very Pretty Domed Glass with Equestrian, Coaching, Seafaring and Patriotic Images with Reverse Painting, Seated in a Brass Base and Converted to a Pin Back as they Typically Were Back in the Day. Highly Collectible and Very Desirable These are Gorgeous Examples of This Artform. 1 1/2" Diameter x 3/4" Deep.