Original U.S. WWII Army Air Force D-2 Breathing Oxygen Bottle With Carry Bag U.S. Ordnance While the number 22 is

While the number 22 is painted onto the blade's tang

There are one or two small dents but it appears to have been well looked after with regular polishing from being continually on display

showing lands and grooves but also wear

- loads of photos

and the left side of the breech is marked with a date of 1863

Original U.S. WWII Army Air Force D-2 Breathing Oxygen Bottle With Carry Bag U.S. Ordnance While the number 22 isOriginal Item: Only One Available. This is a rare U. S. WWII Army Air Corp Type D 2 Breathing Oxygen canister with a khaki carrying case. The Type D 2 oxygen tanks were used in B 17 Bombers. This type of tank is known as a "walk around" tank, measuring approximately 28 inches in length. If the Bombardier needed to get back to the Tail Gunner. He would disconnect his oxygen at his station and connect the D 2 tank to walk to the rear of the bomber. The