Soviet-Bulgarian Space Flight (Soviet Union, USSR 1979)

10 April (Soviet Union, USSR ) within release Soviet–Bulgarian Space Flight goes into circulation Stamp Soviet-Bulgarian Space Flight face value 6 Russian kopek

Stamp Soviet-Bulgarian Space Flight in catalogues
Michel:	Mi:SU 4837
Yvert et Tellier:	Yt:SU 4593

Stamp is vertical format.

Also in the issue Soviet–Bulgarian Space Flight:

• Stamp - Soviet-Bulgarian Space Flight face value 6;
• Stamp - Soviet-Bulgarian Space Flight face value 32;
• First Day Cover - Soviet-Bulgarian Space Flight face value 6;
• First Day Cover - Soviet-Bulgarian Space Flight face value 32;