IsraŽl Shutzpah rocket also celebrated April 12th by reaching the moon, adequately replicating the tested and proven landing method of Vostok ships on the earth:
Fortunately, there was no Gagarin to eject before crash...
See the 1МЧЗ stamps?
If accurate, yours might date between 1963 and 1975.
Here's another example 1945-1963:
Τοday it was The Day
I have not found my Shturmanskie yet, or Racketa-Vostok NP, so today regular Raketa (to commemorate Gagarin) with Great Patriotic War commemorating (9th May is near)!
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Having a John Wick day...
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