10 April (Soviet Union, USSR ) within release Soviet–Bulgarian Space Flight goes into circulation First Day Cover Soviet-Bulgarian Space Flight face value 6 Russian kopek
First Day Cover Soviet-Bulgarian Space Flight in catalogues | |
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Michel: | Mi:SU FDC4837 |
First Day Cover is square format.
Also in the issue Soviet–Bulgarian Space Flight:
First Day Cover Soviet-Bulgarian Space Flight it reflects the thematic directions:
An astronaut (from the Ancient Greek ἄστρον (astron), meaning 'star', and ναύτης (nautes), meaning 'sailor') is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists