Slovak observatories involved in the Interkosmos program

Article dedicated to the philatelic documentation of Slovak observatories involved in the Interkozmos program.

23. 10. 2025
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24. 11. 2011
Christmas Post 2011
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Christmas Post 2011
21. 11. 2011
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10. 11. 2011
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10. 11. 2011
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22. 10. 2011
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21. 10. 2011
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02. 10. 2011
International Peace Marathon 2011
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International Peace Marathon 2011
26. 09. 2011
90 years of the philatelic club in Zilina
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90 years of the philatelic club in Zilina
25. 09. 2011
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24. 09. 2011
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22. 09. 2011
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22. 09. 2011
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19. 09. 2011
IX International conference of representatives of postal administrations and universities
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IX International conference of representatives of postal administrations and universities
15. 09. 2011
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11. 09. 2011
10th anniversary of the TA3 television station
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10th anniversary of the TA3 television station
10. 09. 2011
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03. 09. 2011
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03. 09. 2011
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02. 09. 2011
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26. 08. 2011
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24. 08. 2011
60th anniversary of episcopal ordination of Jan Ch. Kardinal Korec
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60th anniversary of episcopal ordination of Jan Ch. Kardinal Korec
19. 08. 2011
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12. 08. 2011
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28. 07. 2011
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