Original U.S. WWII Army Air Forces Mae West Pneumatic Life Vest by United States Rubber Company - Dated October 1944 Ammunition Development started in late 1916

Development started in late 1916 which lead to the introduction of the cast iron "Egg" grenade

There is also another J

while the rest of the numbers do not match

It remained in production until 1873

Original U.S. WWII Army Air Forces Mae West Pneumatic Life Vest by United States Rubber Company - Dated October 1944 Ammunition Development started in late 1916Original Item: Only One Available. During World War II the U. S. aviators and the Royal Air Force servicemen had available to them a vital piece of American made equipment for emergencies that had only been in use for a few years: an inflatable (Mae West) life preserver. This wonderful example is complete and clearly marked: VEST PNEUMATIC LIFE AN6519 1 DATE OF MFG. OCT 18 1944 CONTRACT NO. W 33 092 TC 1959 UNITED STATES RUBBER CO. PROPERTY U. S.