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First Diesel-Powered Air Flight.

Currency:USD Category:Collectibles Start Price:27.00 USD Estimated At:55.00 - 80.00 USD
First Diesel-Powered Air Flight.
Cover with purple pictorial cachet of 9-cylinder radial engine, "First Air Mail Flight / Diesel Powered Airplane / Pontiac 'Mich.] to Chicago, June 26, 1930, Thompson Aeronautical Corp." Signed by pilot, F.E. Kelch. Postmarked Pontiac, June 26, tying 3C/ purple entire and 3C/ Lincoln postage stamp. Two Rahway, N.J. backstamps on following day. To noted airmail collector Bill Schneider, Jr., Rahway. Kelch was later aboard the inaugural flight of Pan Am's California Clipper to Manila, as an Inspector of the Civil Aeronautics Authority. Pleasing uniform ivory toning, else excellent. Very rare signed.