Soviet Union Vostok 5 & 6 Cosmonauts Se-tenant Pair

Soviet Union · 1963 · 4k and 6k Kopecks

This se-tenant horizontal pair depicts cosmonauts Valery Bykovsky and Valentina Tereshkova in their space helmets, commemorating the second 'team' manned space flight (Vostok 5 and Vostok 6). The stamps were issued to celebrate these significant Soviet space missions.

These stamps commemorate the Vostok 5 and Vostok 6 missions in June 1963, which notably included Valentina Tereshkova, the first woman in space. This achievement was a major milestone in the Soviet space program and a key event in the Cold War space race.