Original U.S. Navy Vietnam War Era Type A3 Oxygen Breathing Apparatus Set in Transit Chest French Gun Magazines M1 Helmet chinstrap was with

M1 Helmet chinstrap was with correct period D Bales was inserted into the liner

very few sets available

most likely made some time in the 1960s or 1970s

isolated parachutists had difficulty in finding their comrades without risking to expose themselves to the enemy fire

Blade Length: 26"

Original U.S. Navy Vietnam War Era Type A3 Oxygen Breathing Apparatus Set in Transit Chest French Gun Magazines M1 Helmet chinstrap was withOriginal Items: Only One Set Available. In 1953, the Type A 3 OBA began to replace the Type A 2 OBA. It was a closed circuit, self contained gadget. Oxygen generated by chemicals in a canister could be inhaled for around 60 minutes, the effective time limit of the oxygen supply, independent of the surrounding atmosphere. Head straps, a set of plastic eyepieces, a speaking diaphragm, and a rubber mouthpiece were all included with the Type A 3 OBA's