Colnect-5049-098-Mathematics.jpg
Source: Colnect
Issued by: Romania
Function: postage
Date: 9/30/1966
Issue: Romanian Academy 100th
Denom: 55b
Color: multicolored
Design: contour integral
Watermark: unwmk
Perf: 13.5
Catalog value:

In collections: some private
Prev: 40b
Next: 1l

External links:
Colnect 139774..demy_Centenary