This pin has been fashioned from a vintage bridle button, taken from the bridle of a horse. There are two racing horse-heads under glass against a dark blue background. The metal is brass. The hoop has been removed and a pin bar with safety catch has been substituted. This pin dates from the early twentieth century. It measures 1 3/4" in diameter and 5/8" thick. It is in excellent condition. There are no marks.