This folder contains correspondence and other documents relating to the commercial development of Edison's phonograph in the United Kingdom, Germany, Mexico, and Russia. Included are letters about the presentation of the phonograph to various foreign dignitaries. Among the correspondents are Julius H. Block, Edison's phonograph agent in Russia; Josef Hofmann, the Polish pianist; and Sherburne B. Eaton, Edison's attorney.

Approximately 70 percent of the documents have been selected. The following categories of documents have not been selected: routine requests for phonographs and information about the phonograph; other routine business correspondence.