Image Colnect-173-079-Spiral-wave-radiation-pattern.jpg
(648 x 481 pixels) |
Type: stamp Issuer: Portugal Date: 1974 Denom: ?
Visibility: public Image owner: none postage 6/26/1974 4.50e multi issue=Inauguration of Earth Stations unwmk perf=14 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/173/079/Spiral-wave-radiation-pattern.jpg Uploaded May 20, 2013, 4:05 pm by Stan Shebs |
