Brazilian aviation pioneer (1873–1932) who designed, built, and flew the first practical dirigible, demonstrating that controlled flight was possible. Bold ink signature and inscription, “Souvenir cordial a M. Lombard de Santos:Dumont,” on an off-white 5 x 3.5 sheet of Aero-Club de France stationery. Double-matted and framed to an overall size of 9.5 x 8. A central horizontal fold and scattered creases, otherwise fine condition. RR Auction COA.