Company Records Series -- New Jersey and Pennsylvania Concentrating Works -- Plant Operations Records -- Standard-Size Notebooks
N-92-00-00.1 (ca. 1893-1894)
This undated notebook was used by Edison, probably in 1893 or 1894, but possibly in 1895. It contains notes, drawings, and calculations regarding the manufacture of briquettes. The spine is labeled "128." The book contains 197 numbered pages, most of which are blank.
Courtesy of Thomas Edison National Historical Park.