This rugged yellow steel oxygen cylinder is a genuine piece of WWII U.S. Army Air Forces history, manufactured by Scott Aviation for use aboard high-altitude bomber aircraft. Stenciled markings read "AIR PAK COMPRESSED" on the body, consistent with USAAF flight crew equipment of the era.

Stamped specifications on the neck read ICC 3A1800, serial number 2228, manufacturer SCOTT, rated at 8.46 PST. Hydrostatic test dates stamped on the bottle include 12-58 and 12-71, with a final recorded test date of 5-82, indicating decades of active service life. The original yellow-painted steel cylinder retains its mounting bracket and hardware. Valve turns freely. Paint shows honest wear, scratches, and patina consistent with field use.

A striking display piece for aviation historians, WWII memorabilia collectors, or enthusiasts of military flight equipment.