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[E1556AZ], Letter from Trask (Spencer) & Co to Thomas Alva Edison, October 11th, 1915

Title: [E1556AZ], Letter from Trask (Spencer) & Co to Thomas Alva Edison, October 11th, 1915
Author: Trask (Spencer) & Co
Recipient: Edison, Thomas Alva
Mentioned: Bradley, Charles Schenck; Crocker, Francis Bacon; Pupin, Michael Idvorsky
Date: 1915-10-11
Type: Letter
Subject: Metals and minerals
Folder ID: E1556-F
Microfilm ID: 263:139
Document ID: E1556AZ
URL: https://edisondigital.rutgers.edu/document/E1556AZ
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 263