1958-05-15 USSR Sputnik 3

Sputnik 3 stamp first day of issue, Moscow. Signed by Russian cosmonaut, Valentina Tereshkova, the first woman in space.
Sputnik 3 achieved 1000 orbits in space.
1958 International Geophysical Year (VCSAGI), cover with postmark on the first day, 30 July 1958.
 
1958 International Geophysical Year (VCSAGI), postcard with postmark on 4 August 1958.
Sputnik 3 achieved 3000 orbits in space.