This folder contains correspondence and other documents relating to the patenting, manufacture, and marketing of Edison storage batteries in Germany. Most of the items are letters and telegrams exchanged by Edison and Sigmund Bergmann, a longtime Edison associate who, with the backing of the Deutsche Bank, formed the Deutsche Edison-Accumulatoren-Co. in November 1904.

Approximately 95 percent of the documents have been selected. The items not selected consist of a Bergmann letter regarding the battery jars of competitors; a letter from Edward H. Johnson in Berlin acknowledging his receipt of checks; a shipping receipt; and items that duplicate information in selected material.