AVIATION. Georges BELLENGER (1878-1977) aviator, promoter of aerial photography. 6 L.A.S., 1913-1935, to Jacques Mortane; 16pages in-8 or in-4. Interesting correspondence, reacting to Mortane's articles, evoking his career, commenting on accidents, and giving details of fellow aviators Gaubert, Chavez, Blériot, Legagneux, General Estienne, etc. Attached are a l.a.s. and a circular from Jean-Baptiste Roche, founder of the École Supérieure d'Aéronautique et de Construction Mécanique; and 6 vintage postcards of airships.