Original U.S. WWII B-17 Flying Fortress .50 Cal Tail Gun Ammunition Box U.S. Militaria The best feature of all

The best feature of all is the original hand painted Gold boxed monogram ‘XXX” inside an "O" (for "Old") inside the cross bars of an "H" (for "Hickory") on red background bordered in black insignia for the 30 infantry division aka the Old Hickory Division

and in quantity

5lbs-7lbs of pressure would crush the sticks driving the pressure plate onto the detonator causing an explosion

The label reads:

Original U.S. WWII B-17 Flying Fortress .50 Cal Tail Gun Ammunition Box U.S. Militaria The best feature of allOriginal Item: Only One Available. WWII B 17 Flying Fortress Tail gun ammunition box, handles a capacity of 500 rounds of 50 caliber Browning machine gun ammunition. Made of sturdy but aircraft friendly lightweight fiberboard and manufactured by the Standard Tire Company of Cedar Rapids, Iowa. Features quick release lift the dot closures and a rubber covered internal belt roller. Offered in excellent condition inside and out. Measures 25 x 7 x 10