#432 Santa Susanna Bit--made from polished, blued steel--inlayed and overlayed with sterling silver. It is loose-jawed with a half-breed mouthpiece. The bit weighs 1 pound 4 ounces. The top of the port from the center of the bar is 1 7/8 inches. From the center of the bar to where the headstall hooks on is 2 3/8 inches. From the center of the bar to where the reins hook on is 4 1/2 inches.