Aircraft designer and manufacturer (1878–1930) who pioneered such far-reaching innovations as the aileron, the pontoon airplane, the flying boat, dual pilot controls, and the retractable landing gear. Fountain pen signature, “Glenn H. Curtiss,” on an off-white 5 x 2.25 slip affixed with tape to a slightly larger piece of paper. In fine condition, with faint vertical fold and subtle show-through from pieces of tape on reverse. R&R COA.
