08/30/1880 Bergmann, Sigmund to Painter, Uriah Hunt
(Batchelor, Charles; Johnson, Edward Hibberd) Manufacturing; Cylinder phonograph [Cover Document and Attachment]
[X154C]  Historical Society of Pennsylvania, Philadelphia, Pa.: Uriah Hunt Painter Papers -- Edison Speaking Phonograph Company Scrapbooks (Incoming Correspondence)
[X154CDB; TAEM 0:0]