Image Colnect-2406-060-Scale-for-equivalence-of-heat-and-energy.jpg
(1024 x 611 pixels) |
Type: stamp Issuer: Germany Date: 2014 Denom: ?
Visibility: public Image owner: none postage 11/3/2014 90c issue=200th birthday of Julius Robert von Mayer d=Scale for equivalence of heat & energy unwmk perf=13.75 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/images/b/2406/060/Scale-for-equivalence-of-heat-and-energy.jpg Uploaded May 24, 2015, 9:27 pm by Stan Shebs |
