10542 USSR Art Covers USSR 1975 23.05 Airmail. Flight of the space-rackets "Soviet" and "Apollon", Start of racket of "Soviet"

10542 USSR Art Covers USSR 1975 23.05 Airmail. Flight of the space-rackets "Soviet" and "Apollon",  Start of racket of "Soviet"
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Date Name Price
10542
1975 23.05
Airmail. Flight of the space-rackets "Soviet" and "Apollon", Start of racket of "Soviet"

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