This letterbook covers the period August 1888-January 1889. The letters are primarily by Charles P. Bruch, writing to, or on behalf of, Ezra T. Gilliland, while the latter was in Europe (August-November 1888). Many of the items relate to Edison's phonograph business. Included are letters pertaining to Edison's dispute with Gilliland and John C. Tomlinson over rights to the phonograph. Some of the correspondence deals with Gilliland's personal affairs and with business interests unrelated to Edison; these letters have not been selected. The book contains 293 numbered pages and an index (not selected). Approximately 30 percent of the book has been selected. A few of the letters are written in faint blue ink and may be difficult to read. Courtesy of Thomas Edison National Historical Park.