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[D7937U], Letter from Henry Bentley, Philadelphia Local Telegraph Co to Thomas Alva Edison, March 21st, 1879

Title: [D7937U], Letter from Henry Bentley, Philadelphia Local Telegraph Co to Thomas Alva Edison, March 21st, 1879
Editor's Notes: Sends map of Phila for SLG. Still waiting for TAE to send buttons for trial. Don't delay; Bell telephone's Blake transmitter reportedly has metallic contacts--no carbon--and works well.
Author: Philadelphia Local Telegraph Co; Bentley, Henry
Recipient: Edison, Thomas Alva
Mentioned: American Bell Telephone Co
Date: 1879-03-21
Type: Letter
Subject: Carbon, coal, glass, ceramics; Telephone
Folder ID: D7937-F
Microfilm ID: 52:28
Document ID: D7937U
URL: https://edisondigital.rutgers.edu/document/D7937U
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 52

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