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The Columbia Telephone System -- its factory and instruments. Woodworking shop. Machine and electrical department. Foundry. Transmitter, receiver, and switch. Early telephones.
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Monday 30 November 2009
- Posted on
- Monday 30 November 2009
- Tags
- communication, network, phone, voice
- Visits
- 1350