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Type: stamp Issuer: Czech Republic Date: 1998 Denom: ? Visibility: public Image owner: none postage 3/25/1998 4.60kc multi issue=100th Anniversary of the Ondrejov Observatory d=Ondrejov Observatory unwmk perf=11.75x11.25 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/3726/326/100th-anniversary-of-the-observatory-in-Ondřejov.jpg Uploaded April 20, 2017, 8:12 pm by Stan Shebs