The central issue when collecting SS helmets is the huge amount of fakes on the market. SS-Steel is intended to assist the collector in determining fakes from the real thing. It provides information specific to their paint, decals and general characteristics. During full-scale production of the M-35 series of helmets, each of the five German helmet makers installed their own pattern of SS decal on helmets at the factory. Variations, unusual and rare helmets, and "foreign volunteer" SS helmets are also explored. Much new information has been incorporated into this update to provide greater clarity on production and use of all helmets of the wartime SS.