Category:Hydraulic telegraph

From Wikimedia Commons, the free media repository

Jump to navigation Jump to search

hydraulic telegraph

Semaphore systems using water-based mechanisms

Upload media

Authority file
Q3556577
Reasonator Scholia Wikidocumentaries PetScan statistics WikiMap Locator tool KML file Search depicted

Hydraulic telegraph

Media in category "Hydraulic telegraph"

The following 3 files are in this category, out of 3 total.

Greek Hydraulic Telegraph of Aeneas relief.jpg 356 × 458; 61 KB
Hydraulic telegraph messages, 4th century BC (reconstruction).jpg 3,024 × 4,032; 4.31 MB
Hydraulic telegraph, 4th century BC (reconstruction).jpg 3,024 × 4,032; 4.11 MB

Retrieved from "https://commons.wikimedia.org/w/index.php?title=Category:Hydraulic_telegraph&oldid=338207008"

Telegraphy

Non-topical/index: