Issue: International Congresses and Assemblies (Soviet Union, USSR, 1966)

Wednesday, July 20, 1966, International Congresses and Assemblies

Wednesday, July 20, 1966 Soviet Union, USSR will issue: Stamp "International Mathematics Congress." face value 6,

International Mathematics Congress.

International Mathematics Congress.
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Country: Soviet Union, USSR
Issue: International Congresses and Assemblies
Date: 1966-07-20
Print: Photogravure
Size: 40 x 28
Perforation: frame 11½
Emission: Commemorative
Format: Stamp
Face Value: 6 Russian kopek
Print run: 4000000