This folder contains correspondence and other documents relating to the business of the Edison Manufacturing Co. Included are items pertaining to the incorporation of the company in May 1900. There are also letters concerning the U.S. War Department's purchase of phonoplex telegraphy components for use in the Philippine Islands. Among the correspondents is William E. Gilmore, vice president and general manager of the company.

Approximately 70 percent of the documents have been selected. Not selected are letters concerning insurance, items regarding royalty payments on phonoplex circuits, and documents that duplicate selected items.

Other items in the Document File relating to the Edison Manufacturing Co. can be found in D-00-01 (Battery) and in D-00-15 (Motion Pictures).