This letterbook covers the period September-November 1893. Most of the correspondence is by Edison and Walter S. Mallory, vice-president of the company. The letters deal mainly with personnel matters, company financial obligations, building renovations, equipment, and supplies. There are two letters in Edison's hand describing his strategy for gaining control of the market for iron ore. Other items relate to Edison's interest in rail freight rates, international marketing, and industrial record keeping. The spine is stamped "Letters" and is labeled "#1 Sept. 29, 1893. To Nov. 15, 1893." The book contains 703 numbered pages and an index. Less than 10 percent of the book has been selected. Courtesy of Thomas Edison National Historical Park.