Sergey Korolev's signature and corrections on a technical paper ''Specifications of the electric equipment of a glider plane SK-7''
14 of July, 1935.  pp. Fine condition. Light tears of the edges. Sergey Korolev (1906-1966) was the Soviet engineer and spacecraft designer who now considered the father of practical astronautics and the founder of the Soviet space program. He led Soviet efforts to build and test the nation's..... More