[N203187], Technical Note, Marion Estelle Edison, Thomas Alva Edison, October 8th, 1884
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Title
[N203187], Technical Note, Marion Estelle Edison, Thomas Alva Edison, October 8th, 1884
Editor's Notes
[selectable; look like written by Marion Edison] "Marion fixed rubber ring with two paper diaphragm 1/32 in ch apart filled with fine coal carbon. the articulation was good but not loud except in one position. This was lost after talking a little wile [sic]. John Ott is now putting some lampblack between them."
Mentioned
Date
1884-10-08
Type
Subject
Folder/Volume ID
N203-F
Microfilm ID
40:553
Document ID
N203187
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University