Early telephone system. Historical illustration from 1885,explaining the recently invented telephone system to the public. The images show (from left to right): making a call,an exchange operator manually connecting the call,and the recipient receiving the call | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 5315 px × 3504 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |