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Type: stamp Issuer: Czechoslovakia Date: 1966 Denom: ?
Visibility: public Image owner: none postage 7/4/1966 60h multi issue=chemical society 100th d=Atomic Symbol unwmk perf=11.25x11.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/3946/262/Model-of-molecule.jpg Uploaded November 1, 2017, 4:48 pm by Stan Shebs |