mail, telegraphy, single-wire telegraph of Siemens and Halske, Berlin, 1850, Artist's Copyright has not to be cleared

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Artist's Copyright has not to be cleared

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 19th, 2nd, berlin, century, communication, communications, electrical, electricity, engraving, germany, halske, historic, historical, information, invention, inventions, kingdom, mail, post, prussia, siemens, single-wire, technics, technologies, technology, telecom, telecommunication, telecommunications, telegraph, telegraphy, transfer, wood