Title

Chappe's telegraph experiment

Caption

A Chappe telegraph station.

Credit line

Photo12

Reference

INV00003_TELEGRAP

Model release

No

License type

Rights managed

Available size

6.8Mb (355.1Kb) / 4.4in x 5.9in / 1334 x 1772 (300dpi)

Keywords

telegraphic line semaphore signal optical telegraph French revolution Pratical daily life Communication & media