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Edison telephone in a wall-mounted box, New York, 1890. Wood engraving
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
Opening of wireless telegraph link between Paris and Casablanca, 1907Opening of wireless telegraph link between Paris and Casablanca, showing men whose work made it possible, Edouard Branly (1844-1940) and Guglielmo Marconi (1874-1937)
Lesage experimenting with the first electric telegraph, Geneva, 1774 (1876). George Louis Lesage (1724-1803), Swiss scientist, devised an early form of electric telegraph
Aerial Telegraph: Ancient Greek soldiers tending a signal fire, c1900. It is claimed that news could be transmitted 525 km in a night. Trade card for Liebig Meat Extract
Aerial telegraph: ancient Roman signal towers, c1900. A basket containing fire was hung from an arm near the top of the tower and used to signal a message to the next tower in a chain
Under the Dark Blue Waters, 1872. Artist: Joseph SwainUnder the Dark Blue Waters, 1872. Father Neptune wishes to relax with his drink and a pipe. In front of him is the trans-Atlantic cable, the first of its kind
Very High Farming, 1870. Artist: Joseph SwainVery High Farming, 1870. Science stands in a field holding a telegraph pole, complete with wires. The representative of the countrys farmers, scratches his head in wonder
The Atlantic Telegraph - A bad look out for Despotism, 1858. John Bull calling to Jonathan Hold fast, Jonathan. Jonathan replying All right, Johnny
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