A rare, push-in style diving knife manufactured around 1915 and used by US Navy divers and commercial divers. According to Diving Heritage, this style knife was manufactured by Morse and also by Shrader and replaced the screw-in pattern but preceded the Mark V pattern designed in 1929. Features a steel blade, sharpened on one side and brass guard, heavy flattened brass sheath with friction spring to hold the knife secure when not in use and a belt bracket on back side. Hardwood handle with ring-turnings and ending with a brass cap. Some minor shrinkage cracks in wood handle. The steel blade measures 7 inches in length, which is standard for this knife. The only difference that we can find is the wood handle is approximately 1/2 inch shorter than other examples that we've discovered. This diverís knife is not marked, but is similar to the example on display of the Diving Heritage web site. Weighs 2 pounds, 4 ounces in sheath.