Letter from Exchange Telegraph Co Ltd to Marshall Lefferts, January 31st, 1874

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Author(s)

Exchange Telegraph Co Ltd
Recipient(s)
Lefferts, Marshall
Others Mentioned
Phelps, George May
Edison, Thomas Alva

Subject(s)

Testing and quality control
Automatic telegraphy

Dated

1874-01-31 (1874)

Associated Images

2

Identifier

X111AT (legacy)

Rights

New-York Historical Society

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
 

Citation

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