This is a fine German-language book. It covers German Army belt buckles from 1800 through 1945. It will give you a good, quick history of the various German states’ and reichs’ belt buckles. It begins in 1800 with the Napoleonic Wars, extends through the mid-19th Century German consolidation wars into the 1870-1871 Franco-Prussian War, then concludes with the 20th Century’s two World Wars. The book is well-illustrated with photos of interesting people, as well as the different period belt buckles. It will be a handy reference book.