Impressive collection of over 520 pins commemorating the Soviet space program, dating from the 1960s to the 1980s, with no examples produced following the collapse of the Soviet Union. The collection represents the full breadth of Soviet space achievement, with pins honoring its numerous cosmonauts like Yuri Gagarin, Valentina Tereshkova, and Alexei Leonov, its engineers and rocket scientists like Konstantin Tsiolkovsky, the Mir space station, the Soyuz, Voskhod, and Vostok programs, and the Space Race-ending Apollo-Soyuz Test Project. The pins are amassed and presented in a custom three-ring collector binder. In overall fine condition.