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TSIOLKOVSKY, KONSTANTIN

Currency:USD Category:Collectibles Start Price:750.00 USD Estimated At:1,500.00 - 2,000.00 USD
TSIOLKOVSKY, KONSTANTIN
<b>269. KONSTANTIN TSIOLKOVSKY </b>(1857 - 1935) Pioneering Russian scientist and rocket designer who laid out the basic principles of modern space flight. Outstanding, early, very rare A.Ms.S. on rocket travel, signed "<i>K. Tsiolkovsky</i>" in the text, 1pp. small 4to. on a thin paper, [n.p., n.d. but ca. 1920-1930], his notes and a complex pair of sketches of what appears to be a rocket engine. The first sketch shows a cutaway of the mechanism while the other, simpler, drawing appears to illustrate how a pair of these engines would work together to produce thrust. Not translated, but the notes undoubtedly describe the operations of the engine. A very rare document. Margins uneven with some light soiling, weak with a partial tear along fold, but otherwise in very good condition. With letter of authenticity issued by the International Charitable Foundation for Support of Russian Cosmonauts.<b> $1,500-2,000</b>