Interkosmos. International cooperation in space (Soviet Union, USSR 1977)

10 April (Soviet Union, USSR ) within release 20th Anniv of Space Exploration goes into circulation Stamp Interkosmos. International cooperation in space face value 20 Russian kopek

Stamp Interkosmos. International cooperation in space in catalogues
Michel:	Mi:SU 4651

Stamp is vertical format.

Also in the issue 20th Anniv of Space Exploration:

• Stamp - Interkosmos. International cooperation in space face value 20;
• Stamp - 20th Anniversary of Space Exploration. face value 20;
• Stamp - 20th Anniversary of Space Exploration. face value 20;