This folder contains correspondence and other documents relating to the primary batteries produced by the Edison Manufacturing Co. Most of the items are letters received by William E. Gilmore, vice president and general manager, concerning the manufacture and sale of the batteries and the activities of competitors. Many of the documents pertain to the supply and sale of batteries in the western United States.

Approximately 70 percent of the documents have been selected. The items not selected include canceled Battery Supplies Co. stock, correspondence arranging business meetings, letters of transmittal, and documents that duplicate information in selected material.