Image Colnect-4606-664-Ernst-Ruska-Inventor-of-the-Electron-Microscope.jpg
(683 x 438 pixels) |
Type: stamp Issuer: Romania Date: 1999 Denom: ?
Visibility: public Image owner: none postage 9/24/1999 17000L multi issue=20th Century d=Ernst Ruska & electron microscope unwmk perf=13.25 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/4606/664/Ernst-Ruska-Inventor-of-the-Electron-Microscope.jpg Uploaded July 3, 2018, 8:25 pm by Stan Shebs |
