World War II Army Helmet. Material: metal, leather, textile. Size: 11 1/4" W. x 12 1/4" L. x 4 1/2" H. Description: olive green brushed metal with green painted pine tree on front stenciled with white "91" (signifying 91st Division); one metal ring on each interior side hold leather liner straps riveted to the top inside and is secured to a chin strap with an adjustable buckle; olive green wool and black leather outside of liner; net lining.