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[D7812ZBI1], Letter from H R Cassel to Thomas Alva Edison, December 30th, 1878

Title: [D7812ZBI1], Letter from H R Cassel to Thomas Alva Edison, December 30th, 1878
Author: Cassel, H R
Recipient: Edison, Thomas Alva
Date: 1878-12-30
Type: Letter
Subject: Labor; Metals and minerals; Cylinder phonograph
Folder ID: D7812-F
Microfilm ID: 17:541
Document ID: D7812ZBI1
URL: https://edisondigital.rutgers.edu/document/D7812ZBI1
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