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File:1940s N935 telephone exchange.jpg

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English: Small telephone switcher, as used perhaps in an office or small company. Manual switchboard and windup handle on the side. Below the bottom row of switches there is a white label reading from left to right: "Night Extension", "Hold Exchange", "Ring, Ring, Ring", and "Operator`s Telephone". The handle on the side, when it was turned, rang the bell on the selected extension phone
Date
Source Own work
Author Rodhullandemu

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current22:28, 21 February 2018Thumbnail for version as of 22:28, 21 February 20183,576 × 3,354 (6.82 MB)RodhullandemuUser created page with UploadWizard
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