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Source: Wikimedia Commons
Issued by:
Russia
Function:
postage
Date:
8/15
/
1951
Denom:
40k
Color:
brown
Design type:
scientists
(1951)
Design:
Lobachevsky
(1951)
Watermark:
unwmk
Perf:
12
Sort pos:
10
Catalog value:
In collections:
used
(Stan Shebs)
Prev:
40k vio d=Krascheninnikov
Next:
40k orgred d=Miklukho-Maklai
External links:
Colnect 282511..iet_Union_USSR
