Category:Science on postal cards

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Subcategories

This category has the following 5 subcategories, out of 5 total.

P

Polar research on postal cards (1 C)
Polar research on postal cards of the Soviet Union (14 F)

S

Scientific events on postal cards (2 F)
Space exploration on postal cards (2 C, 1 F)
Space exploration on postal cards of the Soviet Union (1 C, 2 F)

Media in category "Science on postal cards"

The following 4 files are in this category, out of 4 total.

USSR PCWCS №05 Society Znanie.jpg 3,532 × 2,497; 512 KB
USSR PCWCS №57 Scientific and Technical Creativity of Youth sp.cancellation.jpg 2,094 × 1,487; 2.15 MB
USSR PCWCS №66 IUCN General Assembly sp.cancellation Ashkhabad.jpg 2,081 × 1,493; 2.19 MB
USSR PCWCS №66 IUCN General Assembly sp.cancellation Moscow.jpg 2,093 × 1,487; 2.02 MB

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