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010796

Bell Telephone Company, America. Top left: Winding and inspecting coils. Top right: Experimental deparment. Centre right: First Bell telephone and First Boston telephone exchange with 5 lines (1877). Centre: Inspecting department. Centre right: Hand telephone department. Bottom left: Boston telephone exchange, 1884. Bottom right: Assembling transmitters. Engraving from 'Scientific American' (New York, 20 September 1884).

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010796.jpg
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Irish Photo Archive
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Contained in galleries
Bell Telephone Company, America.  Top left: Winding and inspecting coils. Top right: Experimental deparment. Centre right: First Bell telephone and First Boston telephone exchange with 5 lines (1877). Centre: Inspecting department. Centre right: Hand telephone department. Bottom left: Boston telephone exchange, 1884.   Bottom right: Assembling transmitters. Engraving from 'Scientific American'  (New York, 20 September 1884).