US Navy Mark V Diving Helmet Value Guide

Introduced in 1915, the US Navy Mark V is the quintessential symbol of deep-sea exploration and military salvage operations through World War II. Its heavy brass, copper, and bronze construction made it the standard for naval divers for over sixty years, cementing its status as a premier maritime collectible.

What Is US Navy Mark V Diving Helmet Worth?

The typical price range for US Navy Mark V Diving Helmet is $5,000 - $6,000 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Manufacturer rarity, with certain makers like Miller-Dunn often commanding higher prices than more common DESCO models.
• The presence of all original components, including the internal communications system, air valves, and side lights.
• The specific era of production, with World War I and World War II dated plates generally being more desirable to military historians.
• Overall physical condition, specifically the lack of major dents in the copper bonnet and the clarity of the glass viewports.

How to Identify US Navy Mark V Diving Helmet?

• Check the manufacturer's nameplate on the breastplate for authentic makers like Schrader, Morse, Miller-Dunn, or DESCO.
• Verify the presence of the 12-bolt configuration used to secure the helmet to the diving suit's breastplate.
• Examine the serial numbers; authentic helmets typically have matching serial numbers stamped on both the neck ring and the breastplate ring.
• Inspect the weight and patina of the copper shell and brass fittings, as genuine units weigh approximately 55 to 60 pounds.

History of US Navy Mark V Diving Helmet

The US Navy Mark V diving helmet was introduced in 1915 and became the standard helmet for the US Navy. It was manufactured by several companies, including Schrader, Morse, Miller-Dunn, and Diving Equipment & Salvage Co. (DESCO). This helmet saw extensive use during World War I and World War II, playing a crucial role in salvage operations, underwater construction, and military diving. Its robust design and reliability made it a staple for deep-sea divers for decades, becoming an enduring symbol of courage and adventure in the undersea world. Production continued into the 1980s, though its primary use by the Navy phased out with the advent of lighter, more advanced diving systems.