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Type: stamp Issuer: Czechoslovakia Date: 1965 Denom: ? Visibility: public Image owner: none postage 8/1965 1k multi issue=more misc 1965 unwmk perf=11.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/438/619/International-Symposium-of-Macromolecular-Chemistry.jpg Uploaded August 24, 2014, 8:51 pm by Stan Shebs