Optische Telegrafie

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        Optische Telegrafie

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          Optische Telegrafie

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            Optische Telegrafie

              3 Archival description results for Optische Telegrafie

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              Map, title: 'Deutsches Schutzgebiet Südwest-Afrika. Map of the Karibib-Outjo heliograph line and the routes between Etiro and Outjo.'
              Item · 1903
              Part of Post and Telecommunications Museum Foundation

              Map of the Karibib-Outjo heliograph line in German Southwest Africa (Namibia), after the route survey by First Lieutenant Werner, 1 sheet folded.nWerner, Oberleutnant [photograph/drawing/author] Karsunke [drawing for printing] Verlag der Kgl. Hofbuchhandlung E.S. Mittler & Sohn [publisher] Dietrich Reimer Geographische Verlagshandlung [Ernst Vohsen] [printer];
              Picture postcard; photo postcard, group photo of African mercenaries (Askari) of a heliograph division of the German Schutztruppe in Dar es Salaam/German East Africa, used
              Item · 1908
              Part of Post and Telecommunications Museum Foundation

              Picture postcard 'Unsere Kolonien. Series VI. 5th; Optical telegraphy with a heliograph; Heliograph department in Dar-es-Salam;nSender: Neue Photographische Gesellschaft AG (NPG) [publisher];nInscription: Verlag den Neuen Photographischen Gesellschaft A.G. Steglitz-Berlin.; reverse