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Type: stamp Issuer: Romania Date: 1957 Denom: ?
Visibility: public Image owner: none postage 5/29/1957 55b brnred issue=2nd Engineers & Technicians Congress d=slide rule & calipers & atom symbol wmk=RPR mult endless perf=14x14.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/images/b/781/448/Slide-ruler-slide-gauge--amp--atomic-model.jpg Uploaded August 25, 2014, 9:14 pm by Stan Shebs |