Original U.S. WWII USAAF Bomber Crew M3 Steel FLAK Helmet - Complete Category_Brunswick Guns The mortise button and blade

The mortise button and blade release work perfectly

Other instruments (not generally considered to be "brass knuckles" or "metal knuckles" per se) may have spikes

telephones and other signaling equipment

The 23rd Fighter Group's aircraft are the only United States Air Force aircraft currently authorized to carry this distinctive and historical aircraft marking

Original U.S. WWII USAAF Bomber Crew M3 Steel FLAK Helmet - Complete Category_Brunswick Guns The mortise button and bladeOriginal Item: Only One Available. U. S. Army Air Forces WWII issue M3 Flak Helmet! World War Two American bomber crews in the skies over Europe needed something more than their leather flying helmets to provide them with shrapnel injuries, however it took a surprisingly long time for a new helmet to be developed and deployed to meet that need. Not until December of 1943 did the M3 reach the ETO, it was the first of three versions of the American flak