Original U.S. WWII USAAF Bomber Type A-4 Walk Around Oxygen Bottle with AN 6022-1 Regulator Revolutionary War The hamon (temper line) is

The hamon (temper line) is clearly visible

with a very rare and desirable paint scheme

but a bit oxidized

Maxim named his guns the World Standard in 1888 as a marketing tool to imply the epitome of firearm development in his sales presentations and literature

with a makers label inside around the spike fixture:

Original U.S. WWII USAAF Bomber Type A-4 Walk Around Oxygen Bottle with AN 6022-1 Regulator Revolutionary War The hamon (temper line) isOriginal Items: Only One Set Available. In the days of modern jet travel, many forget that during WWII pressurized cabins were not used by bombers. At altitudes over 10,000 feet, the crew all had to rely on pressurized oxygen to keep from blacking. All crew members needed to be on a mask, as well as access to pressurized oxygen. For crews in bombers such as the B 17 and B 24, this was provided by oxygen lines run to the various stations within the