The 19th General Assembly of International Astronomical Union, New Delhi 1985
Most látható: India - Postaköltség bélyegek - 1985 - The 19th General Assembly of International Astronomical Union, New Delhi - 1 bélyegek.
1985
The 19th General Assembly of International Astronomical Union, New Delhi
19. november Vj: Senki Fogazat: 13 x 13¼
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