File:First Practical Telephone.png

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Summary

First fully developed magneto telephone, November 1876. Division of Work and Industry, National Museum of American History, Smithsonian Institution.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:05, 25 November 2020		1,738 × 1,116 (1.87 MB)	Ralph Meyer (talk \| contribs)	First fully developed magneto telephone, November 1876. Division of Work and Industry, National Museum of American History, Smithsonian Institution.

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Image title	Bell box telephone. EM*308214.
Author	National Museum of American History
Copyright holder	This image was obtained from the Smithsonian Institution. The image or its contents may be protected by international copyright laws.
Short title	NMAH2001-09610.jpg
File change date and time	15:03, 25 November 2020
Horizontal resolution	28.34 dpc
Vertical resolution	28.34 dpc