This letterbook covers the period January 1890. Most of the correspondence is by Edison and Alfred O. Tate. Included are letters relating to the manufacture of the phonograph and talking doll and the marketing of phonographs in Japan and China. There is also correspondence regarding electric lighting, ore milling, and the purchase of mining properties. Other letters pertain to Edison's receipt of the Volta Medal and to the fire that destroyed the first Pearl Street central station. A list of stockholders of the Edison Phonograph Works appears on page 47. The front cover is labeled "General Letter Book T. A. Edison Indexed." The book contains 501 numbered pages and an index. Approximately 50 percent of the book has been selected.