French engineer (1841-1925) best known for his pioneering work in aviation. French-language signed book: L'Aviation militaire by Clement Ader. Paris/Nancy: Berger-Levrault, 1911. Softcover, 5.75 x 8.75, 355 pages. Signed and inscribed adjacent the title page in fountain pen, "A monsieur le Commandant Duperrier, Hommage et sympathie, C. Ader." Autographic condition: fine. Book condition: Fair/None, with the front cover detached, rear cover partially split at spine, foxing and toning to wrappers, edgewear, and soiling.
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