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[LB008180], Letter from Thomas Alva Edison to Francis Robbins Upton, April 16th, 1881

Title: [LB008180], Letter from Thomas Alva Edison to Francis Robbins Upton, April 16th, 1881
Editor's Notes: Have you got any plumbago carbons in the lamps ready I would like to have some experiments made as to how high they will go & as to their life##If you have two of these lamps to spare please send them on to me
Author: Edison, Thomas Alva
Recipient: Upton, Francis Robbins
Date: 1881-04-16
Type: Letter
Subject: Testing and quality control; Carbon, coal, glass, ceramics; Incandescent lamp
Folder ID: LB008-F
Microfilm ID: 80:895
Document ID: LB008180
URL: https://edisondigital.rutgers.edu/document/LB008180
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 80

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