Difference between revisions of "Category:Optical telegraphy"

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[[Image:Optical Telegraph Old Prussian Optical Telegraph Attribution.jpg|thumb|right|A replica of the controls on a Prussian Optical Telegraph - Image by Super Bass]]
  
IEEE GHN Category [[Category:Telegraphy]]
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A system of conveying information by visual signals, usually using towers with flags or shutters
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[[Category:Telegraphy|{{PAGENAME}}]]

Latest revision as of 21:24, 14 January 2013

A replica of the controls on a Prussian Optical Telegraph - Image by Super Bass

A system of conveying information by visual signals, usually using towers with flags or shutters

Pages in category "Optical telegraphy"

This category contains only the following page.

Media in category "Optical telegraphy"

This category contains only the following file.