This US Navy Mark-V Commercial Deep Sea Diving Helmet Suit Clamp Shallow Water Suit is a must-have for collectors of maritime memorabilia. Crafted from brass and metal, this diving helmet suit clamp is a perfect addition to any collection. The suit is a wonderful piece of history that has been well-preserved and is in excellent condition. It was used by the US Navy and is a great example of military diving equipment. The model/style is military and the country/region of origin is the United States. This is a rare find and is sure to be a conversation starter.