Steel Helmet
Metal head covering worn by soldiers as a protection against blows, shrapnel, and small-caliber bullets. From 1915 onward, the high proportion of head injuries in positional warfare led the European armies to develop the steel helmet. In 1915, the French Army equipped its soldiers with a steel helmet made of light sheet steel, the so-called Adrian, which afforded only a little protection. The British Army followed suit shortly thereafter with the Mark I helmet. The typical flat design…