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SIKORSKY, Igor (1889-1972). Russian American aviation pioneer in both helicopters and fixed-wing aircraft. In 1931 he succeeded in building and flying the first successful multicolored airplane. He developed the helicopter. First Day Cover commemorating the “Golden Anniversary of Aviation, 1903-1953”. Fine aviation cachet on the left side of the cover and a 50th Anniversary of powered Flight U.S. 6 cent Air Mail Postage Stamp canceled, Dayton, Ohio, May 29, 1953. Signed at the top left corner of the cover by I. Sikorsky. Fine condition.............................. $100.00
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