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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]]
 
[[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]]
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A system of conveying information by visual signals, usually using towers with flags or shutters
  
 
[[Category:Telegraphy|{{PAGENAME}}]]
 
[[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 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.

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Media in category "Optical telegraphy"

This category contains only the following file.