This letterbook covers the period June-December 1911. Most of the correspondence is by Edison and Harry F. Miller. There are also some letters by George A. Meister and William H. Meadowcroft. Many of the items relate to the commercial and technical development of Edison's alkaline storage battery and its use in locomotives, electric vehicles, lamps for coal miners, and country house lighting. Included is correspondence with business associates such as William C. Anderson, Ralph H. Beach, and Sigmund Bergmann. Several letters pertain to Edison's organization of the storage battery business in Europe, including the appointment of John F. Monnot as his representative and his relations with financier H. Herman Harjes of Morgan Harjes in Paris. A few items deal with Edison's ore milling technologies and royalties earned by the Edison Crushing Roll Co. Also included are letters to financial consultant Roger Babson about population statistics and other matters and to author Poultney Bigelow about the use of airplanes during the Mexican Revolution. Among the items relating to family and personal matters are letters concerning Edison's tour of Europe in August 1911 with his wife Mina and his three youngest children. There is also correspondence regarding Edison's winter home in Fort Myers, Florida, his collections of books and periodicals, his charitable donations, and his membership in clubs and societies, including the Essex County Country Club.

The spine is marked "T.A.E. From June 28- 11 Dec. 3, 1911" and "26." The front cover is marked with similar information. The book contains 699 numbered pages and an index. Approximately 15 percent of the book has been selected.