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[D7937ZCI], Letter from Thomas Alva Edison to U.S. Signal Corps, August 26th, 1879

Title: [D7937ZCI], Letter from Thomas Alva Edison to U.S. Signal Corps, August 26th, 1879
Editor's Notes: "You can keep the case until the Carbon buttons are expended."
Author: Edison, Thomas Alva
Recipient: U.S. Signal Corps
Date: 1879-08-26
Type: Letter
Subject: Carbon, coal, glass, ceramics; Telephone
Folder ID: D7937-F
Microfilm ID: 52:102
Document ID: D7937ZCI
URL: https://edisondigital.rutgers.edu/document/D7937ZCI
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