This is a classic US Navy divers knife, historically paired with the Mark V helmet. This example is in excellent factory-like new condition. The stainless steel blade is in great, unused condition. The wood handle and brass hardware are also in excellent condition. Also still present is the leather strap with stainless steel hardware. 
 
The price includes a 4% credit card fee. If you pay by check, money order, or bank wire, the discounted price is $595 delivered within the contiguous United States.