The Space Program was a Big Deal to impresionable kids born in the 1950s. I remember several birthday and Christmas cards that were astronaut-themed. As big as space was here, I think it was even bigger over in the CCCP.
Christmas wasn't publicly celebrated in Soviet times, only in church on January 6th. They still had a Santa like figure, Father Frost, whose sidekick is the Snow Maiden ,Snegurochka
The greetings on these cards is not "Merry Christmas" but, more or less, "Happy New Year". The tree depicted on some is a "New Year's Tree"
|Happy proletariat kid holds a twig from the New Year's Tree, with Father Frost and his Pioneer Helper Babe Snegurochka |