Notebook Series -- Pocket Notebooks -- Notebooks by Edison
[NP026-F] PN-87-00-00.3 (ca. 1889-1890)
This undated pocket notebook was used by Edison, probably around 1889 or 1890, for notes and drawings on phonograph, chemical, and electromotograph experiments. There is one entry labeled "New Force." The pages are unnumbered. Approximately 40 pages have been used.
Courtesy of Thomas Edison National Historical Park.