Spiked Helmets of Imperial GermanyThis monumental, two volume set, several years in preparation, includes over 400 color photographs, illustrations and period images from the finest collections in the United States and Europe. For the first time, collectors will see a comprehensive full color photographic lexicon picturing helmets from every unit of the Imperial German Army of 1914. Many of the photographs exhibit helmets of such rarity that they have never been seen outside a select