[D8833AAY], Letter from Francis Robbins Upton to Thomas Alva Edison, March 27th, 1888
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Title
[D8833AAY], Letter from Francis Robbins Upton to Thomas Alva Edison, March 27th, 1888
Editor's Notes
"We enclose herewith a letter form F. S. Gorton, Sec'y & Treas., Chicago Edison Company, regarding the blackening of lamps. What reply to you think I had better make to Mr. Gorton?" Very truly yours,. [Marginalia: "My experience is that the SM when they die are blacker than our new lamp and although we run ours at higher and more economical C.P. and they ought to get blacker the first 500 hours shows better on SM but then they lose shine and blacken" [WHAT IS "SM"? STANDARD MUNICIPAL?]
Author
Recipient
Mentioned
Date
1888-03-27
Type
Subject
Folder/Volume ID
D8833-F
Microfilm ID
123:353
Document ID
D8833AAY
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University