Image Colnect-2156-427-Unsaturated-Hydrocarbon-Molecule.jpg
(478 x 294 pixels) |
Type: stamp Issuer: Mexico Date: 1973 Denom: ?
Visibility: public Image owner: none postage 12/7/1973 40c multi issue=chemical engineering school 25th d=stylized hydrocarbon molecule wmk=MEX & eagle perf=14 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/2156/427/Unsaturated-Hydrocarbon-Molecule.jpg Uploaded May 27, 2015, 12:37 am by Stan Shebs |
