This is the famous Spalding Waterfall Patent club. The name derives from the shape of the deep grooves which cascade downward from the heel to toe of the face. The back of the head contains all of the correct Spalding markings including the crow in flight and the pertinent patent information. Like many of the patent clubs, the waterfall iron was outlawed by the USGA in the early 1920s, in this case because it applied too much backspin to the ball. Measures 35" long.