Image Colnect-2128-996-ancient-and-modern-seismometers.jpg
(536 x 340 pixels) |
Type: stamp Issuer: Hong Kong Date: 1983 Denom: ?
Visibility: public Image owner: none postage 11/23/1983 $5 multi issue=100th Anniversary of Hong Kong Observatory d=ancient & modern seismometers wmk=crown & CA spiral perf=14.25 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/2128/996/ancient-and-modern-seismometers.jpg Uploaded June 17, 2016, 3:35 pm by Stan Shebs |
