A group of six antique pre-WWII German Zeppelin books. Featuring Ritter der Luft, Knights of the Sky by Rolf Marben, Vom Luftballon zum Zeppelin, From Balloon to Zeppelin by Robert Theuermeister, Der Zeppelin Spion von York, The Zeppelin Spy from York by Felix Lützkendorf, Mit Luftschiff Hindenburg uber den Atlantik, Across the Atlantic on the Hindenburg Airship by Rolf Brandt, and Deutsch - Ostafrika Unverloren! German - East Africa Undefeated! by Josef Viera, this ensemble offers tales of heroism, the evolution of air travel, espionage intrigue, firsthand accounts of transatlantic journeys, and historical insights. Bibliophilic Collectibles And Aviation Memorabilia.