This daybook covers the period May 1871-January 1873. It provides a daily record of bills, receipts, and expenditures. The spine is marked "DAYBOOK No. I Edison and Unger 1871." The book contains 401 numbered pages.

Blank pages: 146-147, 220-389, 394-395.

Missing pages: 397-398.

Courtesy of Thomas Edison National Historical Park.