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Type: stamp Issuer: Germany Date: 1940 Denom: ? Visibility: public Image owner: none semipostal 11/26/1940 6+4pf grn issue=diptheria antitoxin discovery 50th d=Emil von Behring (1940) unwmk Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/images/b/418/265/50th-Anniv-of-Development-of-Diphtheria-Antitoxin.jpg Uploaded September 11, 2014, 4:47 pm by Stan Shebs