細節
Heutelburg, Hans: Als Kampfflieger am Suez Kanal,
paperback, illustrated cover, gothic text, photographs; Richthoven, Rittmeister Manfred Freiberrn von: Der Rote Kampfflieger 1917, paperback, illustrated cover, gothic text; Kirchner, Oberst Dr Wilhelm: Feldballon und Luftsperren, 1939, paperback, photographs, diagrams; Norden, Adalbert: Flugel am Horizont, gothic text, photographs; Kempe, Erich: Aviatik, 1911, paperback, photographic reproductions (5)
paperback, illustrated cover, gothic text, photographs; Richthoven, Rittmeister Manfred Freiberrn von: Der Rote Kampfflieger 1917, paperback, illustrated cover, gothic text; Kirchner, Oberst Dr Wilhelm: Feldballon und Luftsperren, 1939, paperback, photographs, diagrams; Norden, Adalbert: Flugel am Horizont, gothic text, photographs; Kempe, Erich: Aviatik, 1911, paperback, photographic reproductions (5)