[NB001001], Technical Note, Jonas Walter Aylsworth, January 1st, 1888
Cylinder record and duplicating technology
[NB001-F] Notebook Series -- Notebooks by Other Experimenters
https://edisondigital.rutgers.edu/document/NB001001
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Archive.org Viewer, Microfilm Series Reel 101