This is a highly decorative replica of the world's most famous diving helmet. One of the best and best known diving helmets in the world is the US Navy Mark V. Until about 1912 there was hardly any serious (deep) diving activity in the US Navy. Commercial Morse and Schrader helmets were used. US Navy gunner George D. Stillson wrote a letter to the Bureau of Construction and Repair (now the Bureau of Ships) in which he complained about the Navy's equipment and diving techniques. He suggested to check the practicability of Haldane's stage method of decompression and to improve the standard Navy diving gear to permit deeper dives. The Bureau gave Stillson the assignment. It took several years and the help of a team of military and commercial diving experts to complete the heavy task. The design of the new diving helmet was based on commercial Morse and Schrader helmets of that time and the team also tested Siebe and Draeger equipment. Extensive tests were conducted in diving tanks ashore and later from the U.S.S. Walke in Long Island Sound. In 1915 Stillson reported to the bureau in the Report on Deep diving tests. It contained drawings and descriptions of the precursor of the MkV and of a lot of other navy diving equipment. Stillson laid the foundations for professional diving in the US Navy. Condition: In excellent condition, please see photos for confirmation. Dimensions in cm: Height 42 x Width 35 x Depth 46 & Weight 6.3 kg Dimensions in inches: Height 1 foot, 4 inches x Width 1 foot, 2 inches x Depth 1 foot, 6 inches & Weight 13.9 lbs Our reference: 01245 Please feel free to email or call us (+44 20 8809 9605) to arrange a viewing in our North London warehouse. Shipping: We ship worldwide and deliver to Mainland UK addresses free of charge. A shipping cost to all other destinations must be requested prior to purchase. To request a shipping quote for the items in your cart, please click HERE. Delivery and return policy: We require that someone be home on the agreed delivery day if applicable, otherwise a redelivery fee will apply. In accordance with Distance Selling Regulations, we offer a 14-day money back guarantee if you are not satisfied with the item. The item must be returned in its original packaging and condition. Unless the item is not as described in a material way, the buyer is responsible for return shipping expenses. Buyers are fully responsible for any customs duties or local taxes that may be incurred on items sent outside of the European Union.