[CA038-F]

https://edisondigital.rutgers.edu/folder/CA038-F

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Part Of: Primary Printed Series -- Other Companies

[CA038-F] Edison Phonoplex System (1890)

  1. "Edison Phonoplex System of Telegraphy." 1890. 29 pp.
  2. "Operator's Guide" n.d. 16 pp.
  3. "Edison Phonoplex System of Telegraphy." 1892 [38 pp.], 1899 [40 pp.] [not selected].

Courtesy of Thomas Edison National Historical Park.

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