[D8833AAY], Letter from Francis Robbins Upton to Thomas Alva Edison, March 27th, 1888

https://edisondigital.rutgers.edu/document/D8833AAY

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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?]

Date

1888-03-27

Decade

1880-1889

Type

Folder/Volume ID

D8833-F

Microfilm ID

123:353

Document ID

D8833AAY

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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