This journal covers the period March 1892-April 1895. The daily account entries provide detailed information about income and expenditures for the West Orange and Ft. Myers laboratories, Glenmont, and various Edison business operations. The book contains 353 numbered pages. The spine is stamped "Journal No. 7. Laboratory of T. A. Edison Orange, N.J." It is labeled "9" and "March 31, 1892 to April 30, 1895."
This book was microfilmed at a reduction ratio of 16:1. Courtesy of Thomas Edison National Historical Park.