This folder contains correspondence and other documents relating to the technical and commercial development of the phonograph. Included are letters about Edison's new-model phonograph, the dissolution of the Automatic Phonograph Exhibition Co., and the development of Emil Berliner's gramophone. There is also a telegram from George E. Gouraud congratulating Edison on his victory in his phonograph infringement suit.

All of the documents have been selected.

Courtesy of Thomas Edison National Historical Park.