Details
Dr O. Prochnow: Vogelflug und Flugmaschinen,
1910, illustrated cover, gothic text, drawings and diagrams; Schafer, Leutnant: vom Jager zum Flieger, paperback, illustrated cover, gothic text, photographs; Bell Pettigrew, Dr J: Die Ortsbewegung der Thier, 1875, text, drawings and diagrams; Dipl Ing Otto R. Thomias: der Flugzeugfuhrer, 1936, paperback, text, drawings, photographs, fold-out diagrams; Die Erfindung des Flugdrachen, 1913, paperback, text, drawings, photographs, fold-out diagrams; Kreiss, Eugen: Das Flugproblem, card covers, text and fold-out diagram plus one other, 1919 (7)
1910, illustrated cover, gothic text, drawings and diagrams; Schafer, Leutnant: vom Jager zum Flieger, paperback, illustrated cover, gothic text, photographs; Bell Pettigrew, Dr J: Die Ortsbewegung der Thier, 1875, text, drawings and diagrams; Dipl Ing Otto R. Thomias: der Flugzeugfuhrer, 1936, paperback, text, drawings, photographs, fold-out diagrams; Die Erfindung des Flugdrachen, 1913, paperback, text, drawings, photographs, fold-out diagrams; Kreiss, Eugen: Das Flugproblem, card covers, text and fold-out diagram plus one other, 1919 (7)