This folder contains correspondence and other documents relating to the patenting, manufacture, and sale of Edison storage batteries in Germany. Most of the items are letters exchanged by Edison and Sigmund Bergmann, director of the Deutsche Edison-Accumulatoren-Co. Included are letters pertaining to the price of supplies, the cost of manufacture, and the delay caused by Edison's continued development of the battery.

Approximately 70 percent of the documents have been selected. Among the items not selected are the minutes of a Deutsche Edison- Accumulatoren board meeting, in German and English, and documents that duplicate information in selected material.