Telegraph operator using a Hebern electric code machine. Photographed at the Western Union Telegram Office, Washington, D.C., USA in March 1923. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Library of Congress |
Taille de l’image : | 6690 px × 5230 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |