This folder contains correspondence and other documents relating to the technical and commercial development of phonographs. Among the items for 1907 are letters from attorney John E. Helm to William E. Gilmore, president and general manager of the National Phonograph Co., regarding insurance policies for the phonograph company and other Edison concerns; suspected embezzlement and mismanagement by employees of the Edison Phonograph Works and other Edison interests; and the status of non-Edison companies in which Helm, Gilmore, and other Edison personnel were involved. Also included are several letters written by Gilmore during his visit to Europe in June 1907; reports to Edison from Leonard C. McChesney, manager of the Advertising Department of the National Phonograph Co.; and correspondence with the International Correspondence Schools of Scranton, Pennsylvania, users of Edison phonographs.
Approximately 50 percent of the documents have been selected. The items not selected include the bylaws for La Compania Edison Hispano-Americana, an Edison subsidiary in Argentina; routine reports by McChesney, some enclosing advertisement copy; a letter regarding copyright litigation not involving Edison; and documents that duplicate information in selected material.