Original U.S. Navy Vietnam War Era Type A3 Oxygen Breathing Apparatus Set in Transit Chest 21st Century After earning his flight wings

After earning his flight wings

making the weapon compact as its bolt recoils inside a tube running through the buttstock

as well as the Avro Tudor passenger aircraft

a really nice example of what almost every Naval Officer carried at the time

They do not have any real dents

Original U.S. Navy Vietnam War Era Type A3 Oxygen Breathing Apparatus Set in Transit Chest 21st Century After earning his flight wingsOriginal 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