A Russian Soviet vintage set includes two covers with stamps and three stamps commemorating the Voskhod 1 mission in October of 1964, that for the first time in the world, a multi-seat ship was flown and for the first time it was carried out without spacesuits; and Voskhod 2 mission in March of 1965, which saw the first-ever spacewalk. The one cover is signed in ink by Russian cosmonauts Vladimir Komarov (1927-1967), Konstantin Feoktistov (1926-2009), Boris Egorov (1937-1994), Pavel Belyaev (1925-1970), and Aleksei Leonov (1934-2019). Two Cuba and one Republic of Niger commemorating stamps. The inscription in ink, Voskhod I plus Voskhod II crews, lower left. The inscription in ink, The Cosmonaut Day April 12, 1987, lower right.