Image Colnect-141-294-Paul-Karrer-1889-1971-biochemist--amp--vitamin-A-formula.jpg

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Type: stamp Issuer: Switzerland Date: 1997 Denom: ? Visibility: public Image owner: none postage 11/13/1997 90(c) multi issue=Nobel Prize d=Paul Karrer & Vitamin A unwmk perf=13.25 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/images/b/141/294/Paul-Karrer-1889-1971-biochemist--amp--vitamin-A-formula.jpg Uploaded August 30, 2014, 2:40 pm by Stan Shebs