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Stock Photo - Germany - CIRCA 1974: A stamp printed in Germany, shows a portrait of Adolf Karl Heinrich Slaby (1849-1913), was a German wireless pioneer and the first Professor of electro-technology at the Technical University of Berlin, circa 1974
Germany - CIRCA 1974: A stamp printed in Germany, shows a portrait of Adolf Karl Heinrich Slaby (1849-1913), was a German wireless pioneer and the first Professor of electro-technology at the Technical University of Berlin, circa 1974
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Image ID : 14242382
Image Type : Stock Photo (Editorial image)
Copyright : Alex Postovski
 
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