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Type: stamp Issuer: Yugoslavia Date: 1981 Denom: ? Visibility: public Image owner: none postage 11/4/1981 8din multi issue=International Conference on Technology for Development unwmk perf=13.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/761/310/International-Conference-for-Technology-and-Progress.jpg Uploaded September 1, 2014, 9:24 pm by Stan Shebs