Switchboard operators, phone personnel service room, Broadway Department Store, Los Angeles, California, 1925.
Une standardiste munie d'un masque à gaz spécial auquel a été adapté le téléphone, à Londres, Royaume-Uni en 1938.
View of a switchboard operator at work, February 1946. She wears a newly-developed, lightweight headset.
An unidentified maintenance man checks of the wiring beneath the key shelf of a New York Telephone Company telephone switchboard, New York, New York,...
An English switchboard operator speaking to America by radio telephone for the first time in 1926. From The Story of 25 Eventful Years in Pictures...
An early 20th century telephone switchboard containing 50 double lines with built in trunking cables. From Meyers Lexicon, published 1924.
The opening of the new telephone exchange at South John Street, Liverpool. Pictured is the room where the switching over from the old to the new...
Engraved frontispiece showing women telephone operators in a large telephone exchange. The cutaway shows the bundled wired passing out underground....
Photograph of a woman operating a telephone switchboard, taken by Photographic Advertising Limited in 1954. Photographic Advertising Limited, founded...電話, 1950-1959
Sector pattern switchboard wattmeter. Made by Metropolitan Vickers. The wattmeter measures the power dissipated in an electrical circuit. The need to...
This American plug and cord switchboard was made by Jones Bros of Cincinnati, United States and installed in Norway by the Bell Company in 1880. The...
This American plug and cord switchboard was made by Jones Bros of Cincinnati, United States and installed in Norway by the Bell Company in 1880. The...
This American plug and cord switchboard was made by Jones Bros of Cincinnati, United States and installed in Norway by the Bell Company in 1880. The...
Fred Clarke as a switchboard operator, late 1930s. Frederick William Clarke, the younger brother of Arthur C Clarke, is depicted here using a...亞瑟·查理斯·克拉克
- Pupils receiving instructions on the operation of the switchboard at the school for telephone operators at Telephone House, Newcastle. 6th March...
An electricity switchboard of a private electrical power generator is installed at a street in the Palestinian refugees camp of Burj al-Barajneh, in...
An employee handles a bolt while working on an electric switchboard unit at the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017....
An employee works on an electric switchboard unit at the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017. Nicknamed the "Detroit of...
An employee works on an electric switchboard unit at the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017. Nicknamed the "Detroit of...
An employee works on an electric switchboard unit at the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017. Nicknamed the "Detroit of...
An employee handles cables while working on an electric switchboard unit at the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017....
An employee works on an electric switchboard unit at the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017. Nicknamed the "Detroit of...
Employees work on electric switchboard units at desks inside the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017. Nicknamed the...
An employee works on an electric switchboard unit sitting on a palette inside the Grundfos AS factory in Chennai, India, on Monday, Nov. 27, 2017....
In this U.S. Navy handout, sailors inspect a switchboard room during a hospital assessment at Pavia Hospital September 30, 2017 in Yauco, Puerto...
