1888 [Supplied year] Edison, Thomas Alva to Bergmann, Sigmund
(Marks, William Dennis; Insull, Samuel) Financial operations (companies and organizations); Sales and service
[D8802]  Document File Series -- 1888: (D-88-02) Bergmann & Co
[D8802ACA; TAEM 121:119]
Courtesy of Thomas Edison National Historical Park.