mail_outline sales@mediastorehouse.com
New York telephone subscriber making call through operator at telephone exchange, 1883. Apparatus in picture used an Edison transmitter and a pony-crown receiver
Edison transmitter and a pony crown receiver, New York, c1891. Telephone apparatus available to New York subscribers. This used an Edison transmitter and a pony crown receiver
Cross-section of Edisons lamp-black (carbon) button telephone transmitter (microphone), c1891. Wood engraving
United States Army Signal Corps using captured German telephone equipment, World War 1. Photograph. Signal Corps Museum, Fort Monmouth, New Jersey
Central Telephone Exchange, Paris, 1883. Central Telephone Exchange, rue de Lafayette, Paris, staffed by female telephonists. From Louis Figuier Les Nouvelles Conquetes de la Science, Paris, 1883
Telephone switchboard, 1956
Apollo director Phillips monitors Apollo 11 pre-launch activities, Florida, USA, 1969. From the Kennedy Space Flight Center control room, Apollo Program Director Lieutenant General Samuel C
