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[D7719ZCA], Letter from Thomas B A David to Thomas Alva Edison, September 19th, 1877

Title: [D7719ZCA], Letter from Thomas B A David to Thomas Alva Edison, September 19th, 1877
Editor's Notes: Spent two hours on telephone but unsatisfactory nothing like results when at Menlo
Author: David, Thomas B A
Recipient: Edison, Thomas Alva
Date: 1877-09-19
Type: Letter
Subject: Testing and quality control; Telephone
Folder ID: D7719-F
Microfilm ID: 14:940
Document ID: D7719ZCA
URL: https://edisondigital.rutgers.edu/document/D7719ZCA
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 14