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Type: stamp Issuer: China, PRC Date: 1980 Denom: ? Visibility: public Image owner: none postage 3/12/1980 8f multi dt=tree planting d=n2. unwmk Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/3659/628/2nd-Conference-of-the-Chinese-Organization-for-Science.jpg Uploaded April 14, 2017, 10:55 pm by Stan Shebs