Colnect-3350-407-75th-Anniversary-of-the-Helwan-Observatory.jpg
Source: Colnect
Issued by: Egypt
Function: postage
Date: 12/30/1978
Issue: 75th Anniversary of Helwan Observatory
Denom: 20m
Color: multicolored
Design: Kottamia Astronomical Observatory
Watermark: arms mult
Perf: 11x11.25
Width: 50.00 Height: 43.00
Catalog value:



External links:
Colnect 363840..tory-Astronomy

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