Colnect-2152-214-Globe---Algebranic-Symbol.jpg
Source: Colnect
Issued by: Pakistan
Function: postage
Date: 7/14/1975
Issue: International Congress of Mathematical Sciences
Denom: 20p
Color: multicolored
Design:
Watermark: unwmk
Perf: 13
Catalog value:



External links:
Colnect 236583..tical_Sciences


Record of changes

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