Automatic Telephone

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Telephone Electricians - The Cable Room

Student Army Training Corps - World War I - Photograph LA 50

Telephone Electricians - Pole Climbing

Student Army Training Corps - World War I - Photograph LA 64 - shows class in pole-climbing int he course for Telephone Elecetricians, with some of their instructors

Telephone Electricians - Visual Signaling

Student Army Training Corps - World War I - Photograph LA XXXII - The Usual Manner of Conducting a Class in Visual Signaling

Mike Wallace speaking on telephone in office [horizontal]

one of four prints grouped together - taken at same location, about same time?

Mike Wallace speaking on telephone in office [vertical]

one of four prints grouped together - taken at same location, about same time?

Physical impairment among industrial workers. A report based on the complete physical examination of one thousand white, male, machine and hand tool operators. A study made through the Industrial Health Conservancy Laboratories.

Mode of access: Internet.

Principles of electricity applied to telephone and telegraph work; a training course text prepared for employees of the Long lines department, American telephone and telegraph company, November, 1938...

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