Optical telegraphy,19th century

Numéro d’image : 11710373
Optical telegraphy,19th century
Optical telegraphy. Historical illustration of an optical (also called visual or aerial) telegraphy system used by the British in the early 19th century. Before the advent of electrical telegraphy using wires,a number of semaphore or shutter-type telegraph systems were developed to send signals. Opening and closing the shutters according to a set code would transmit messages between telegraph stations that formed a chain between cities. Artwork from 'Electricite' (1911) by Max de Nansouty,part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier
Licence : Droits gérés
Crédit: Science Photo Library
Taille de l’image : 3501 px × 5070 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

Prix pour cette image À partir de 45 €

Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €

Mots clés

;