Colnect-4606-664-Ernst-Ruska-Inventor-of-the-Electron-Microscope.jpg
Source: Colnect
Issued by: Romania
Function: postage
Date: 9/24/1999
Issue: 20th Century
Denom: 17000L
Color: multicolored
Design: Ernst Ruska & electron microscope
Watermark: unwmk
Perf: 13.25
Width: 42.00 Height: 27.00
Catalog value:



External links:
Colnect 203878..e-20th_Century

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