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[D7928H], Letter from A J Cogan to Thomas Alva Edison, May 7th, 1879

Title: [D7928H], Letter from A J Cogan to Thomas Alva Edison, May 7th, 1879
Editor's Notes: on TAE's circular - none here, but try Black Hills
Author: Cogan, A J
Recipient: Edison, Thomas Alva
Date: 1879-05-07
Type: Letter
Subject: Metals and minerals; Ore exploration and mining
Folder ID: D7928-F
Microfilm ID: 50:589
Document ID: D7928H
URL: https://edisondigital.rutgers.edu/document/D7928H
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 50
License: CC0 1.0 Universal