Russian Helmets: From Kaska to Stalshlyem 1916 – 2001- By Robert W. Clawson. This volume, written by the world’s foremost authority on Russian combat helmets, is the first comprehensive study of one of the most ubiquitous helmets of the twentieth century. Russian Helmets provides the keys to accurate identification of the various models of Russian and Soviet helmets, from steel to exotic materials and composite fiber. In addition, it notes numerous rare experimental models and evaluates their contribution to the evolution of subsequent production models. Photographs (161 photos, most in color) of the various models, as well as cutaway drawings and diagrams, are included. This book provides a reliable, comprehensive reference for every serious helmet collector or student of twentieth century warfare. 128 pages.