This antique diving helmet is a true gem for collectors and enthusiasts of maritime and diving equipment. With its vintage design and rare availability, this Mark V helmet is a must-have for anyone interested in the history of naval diving. The helmet is made of high-quality materials and has been well-preserved over the years, making it an excellent addition to any collection. Whether you're a diver, a collector, or simply interested in the history of naval diving, this antique diving helmet is sure to impress. Its unique design and rare availability make it a one-of-a-kind item that is sure to catch the attention of anyone who sees it. So why wait? Add this vintage navy diving helmet to your collection today!