SIKORSKY I.I. (1889-1972) Autograph postcard-letter addressed to Grigory Aleksinsky. Paris, September 19, 1923

14.5 x 11.2 cm. An informative message. Igor Ivanovich Sikorsky was a Russian-American aircraft designer, scientist and inventor. After the Revolution he emigrated to the United States. A pioneer of aviation in both helicopters and fixed-wing aircraft, he is famous for designing the first four-engine aeroplane and for developing the modern helicopter with a main and tail rotor. He founded the Sikorsky Aircraft Corporation in 1923.