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[LB048035], Letter from Thomas Alva Edison to Western Union, Edward C Cockey, February 28th, 1891

Title: [LB048035], Letter from Thomas Alva Edison to Western Union, Edward C Cockey, February 28th, 1891
Author: Edison, Thomas Alva
Recipient: Western Union; Cockey, Edward C
Mentioned: West Orange Laboratory
Date: 1891-02-28
Type: Letter
Subject: Testing and quality control; Production difficulties and adjustments; Multiple telegraphy (duplex, quadruplex)
Folder ID: LB048-F
Microfilm ID: 142:12
Document ID: LB048035
URL: https://edisondigital.rutgers.edu/document/LB048035
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 142