File:Schilling calling system.png

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Description
English: Pavel Schilling's calling system for his needle telegraph
Date published 1884
Source J.J. Fahie, A History of Electric Telegraphy, to the Year 1837, London: E. & F.N. Spon, 1884
Author John Joseph Fahie (1846-1934)

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current23:13, 28 April 2020Thumbnail for version as of 23:13, 28 April 2020844 × 650 (244 KB)Spinningspark{{Information |Description=Pavel Schilling's calling system for his needle telegraph |Source=J.J. Fahie, A History of Electric Telegraphy, to the Year 1837, London: E. & F.N. Spon, 1884 |Date=published 1884 |Author=John Joseph Fahie (1846-1934) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}}
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