This pocket notebook was used by Edison and an unidentified employee, probably during the summer of 1904. Many of the entries relate to production costs for Edison's alkaline storage battery. Included are labor distribution figures and notes on piecework rates, materials, and other manufacturing costs. There are some similar figures for the Edison Portland Cement Co. In addition, the book contains entries by Edison regarding experiments to be performed, including work on storage batteries and a Lansden electric vehicle. Also included is a list of machinery necessary for manufacturing rubber parts. Inserted into the book is a report on labor and material costs at the Edison Storage Battery Co. works in Glen Ridge, New Jersey, for the week ending July 13, 1904, along with 2 pages of loose notes. The front cover is stamped with the British royal crest. The pages are unnumbered, and several pages have been removed from the book. Approximately 50 pages have been used.