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Type: stamp Issuer: Poland Date: 2018 Denom: ? Visibility: public Image owner: none postage 11/26/2018 3.20Zł multi issue=100th Anniversary of the Patent Office unwmk perf=11.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/5405/870/100-years-of-the-Patent-Office-of-the-Republic-of-Poland.jpg Uploaded March 13, 2019, 1:20 am by Stan Shebs