Category:Optical telegraphy

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IEEE GHN Category

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

Pages in category "Optical telegraphy"

This category contains only the following page.

C

Claude Chappe

Media in category "Optical telegraphy"

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Optical Telegraph Old Prussian Optical Telegraph Attribution.jpg 1,468 × 2,570; 884 KB

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Telegraphy