[NS7703A1], Technical Note, Thomas Alva Edison, John Kruesi, November 1877
https://edisondigital.rutgers.edu/document/NS7703A1
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Title
[NS7703A1], Technical Note, Thomas Alva Edison, John Kruesi, November 1877
Editor's Notes
duplicate image of NS7703A: This document was once considered to be the drawing from which Kruesi constructed the first phonograph. However, the evidence suggests that the inscription was added at a later date. It does not appear on the reproduction of the drawing in William K. L. Dickson's biography of Edison, published in 1894, nor on the reproduction in James U. MacKenzie's obituary in the Electrical World in 1895.
Supplied month
Author
Recipient
Date
1877-11-00
Type
Subject
Folder/Volume ID
NS7703-F
Microfilm ID
7:448
Document ID
NS7703A1
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University