BRAND NEW!!! Volume II on the German Navy & Central Power Air Services. Another First. The FIRST book to cover in detail the Imperial German Navy and Central Powers (Austro-Hungarian, Ottoman Turkish, and Bulgarian Air Service) flight training requirements, flight badge award criteria as well as badge construction details. The book provides exact information on how to identify the many fake badges on the market and gives information on the firms that produced these rare badges. A must for the serious WWI German aviation and Central Powers collector or historian. This is the follow on and matching book to Volume I on the Imperial German Army Flight Badges and Commemorative Airship Badges which was another first and has done extremely well with collectors. Do not buy another badge until you read these books. ISBN: 978-1-4675-3942-5, Hardback. Full color. Large 8.5 x 11" format. 248 pages. Heavy glossy pages. $99.00.