Image Colnect-2051-010-KETsiolkovsky--s-rocket-and-rocket-speed-formula.jpg

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Type: stamp Issuer: Poland Date: 1963 Denom: ? Visibility: public Image owner: none postage 11/11/1963 30g gray dt=space (1963 Poland) d=KETsiolkovskys rocket & rocket speed formula unwmk perf=9-14.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/images/b/2051/010/KETsiolkovsky--s-rocket-and-rocket-speed-formula.jpg Uploaded December 20, 2014, 6:21 pm by Stan Shebs