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[D7812X], Letter from Dr M Hartwig to Thomas Alva Edison, May 17th, 1878

Title: [D7812X], Letter from Dr M Hartwig to Thomas Alva Edison, May 17th, 1878
Author: Hartwig, Dr M
Recipient: Edison, Thomas Alva
Date: 1878-05-17
Type: Letter
Subject: Labor
Folder ID: D7812-F
Microfilm ID: 17:485
Document ID: D7812X
URL: https://edisondigital.rutgers.edu/document/D7812X
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 17