Superb collection of 21 signed official KNIGA covers commemorating Russian space achievements, including the complete set of covers for the six Vostok flights, individually signed by the first six cosmonauts: Yuri Gagarin, German Titov, Andriyan Nikolayev, Pavel Popovich, Valery Bykovsky, and Valentina Tereshkova. The other covers, most multi-signed, include: Voskhod 1 (Vladimir Komarov, Konstantin Feoktistov, and Boris Yegorov); Voskhod 2 (Pavel Belyayev and Alexei Leonov); Soyuz 3 (Georgy Beregovoy); Soyuz 4/5 (Yevgeny Khrunov, Vladimir Shatalov, Aleksei Yeliseyev, and Boris Volynov); Soyuz 6 (Georgi Shonin and Valeri Kubasov); Soyuz 7 (Anatoly Filipchenko, Vladislav Volkov, and Viktor Gorbatko); Soyuz 8 (Vladimir Shatalov and Aleksei Yeliseyev); Soyuz 9 (Andrian Nikolayev and Vitaly Sevastyanov); Soyuz 12 (Vasili Lazarev and Oleg Makarov); Soyuz 13 (Pyotr Klimuk and Valentin Lebedev); Soyuz 14 (Yuri Artyukhin and Pavel Popovich); Soyuz 15 (Gennadi Sarafanov and Lev Dyomin); Soyuz 16 (Anatoly Filipchenko and Nikolai Rukavishnikov); Soyuz 19 (Alexei Leonov and Valeri Kubasov); and Soyuz 21 (Boris Volynov and Vitaly Zholobov). Also includes an unsigned cover commemorating the disastrous Soyuz 11 mission. In overall fine condition. Accompanied by five of the original KNIGA certificates, for Voskhod 1-2, Soyuz 3-5, Soyuz 6-8, Soyuz 9, and Soyuz 13.
