Notebook, PN-87-05-08 (1887)
The one dated entry in this notebook is from May 1887. The book contains instructions from Edison, in the hand of Mina Miller Edison, to John Ott regarding proposed filament experiments. Some of the entries contain annotations by Ott indicating what was done. The front cover is stamped \"Note Book.\"" The pages are unnumbered. Only 4 pages have been used."