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Type: stamp Issuer: Russia Date: 2000 Denom: ? Visibility: public Image owner: none postage 6/20/2000 1.30r multi dt=Russia 20th Century Science d=N.I. Vavilov (2000) unwmk perf=12.25x12 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/2024/503/Homological-rows-in-hereditary-divergence-NVavilov-1920.jpg Uploaded August 12, 2015, 4:23 pm by Stan Shebs