Original U.S. WWI Model 1918 Experimental "Liberty Bell" Helmet with Chinstrap & Partial Liner Helmets square tang

square tang

led the group until 13 October 1932

so the size stamp is to faded to read

It is also fitted with a "set trigger"

It had the highest average rates of fire of any single-barreled light machine gun

Original U.S. WWI Model 1918 Experimental "Liberty Bell" Helmet with Chinstrap & Partial Liner Helmets square tangOriginal Item: Only One Available. The industrialization and mechanization of war in the early twentieth centurywhich meant an increased use of artillery, tanks, and machine guns, and the advent of trench warfareresulted in an unprecedented number of killed and wounded soldiers right from the outset of World War I in 1914. The large number of head wounds suffered by combatants soon made it apparent that metal helmets, though long out of use, were