This ledger covers the period July 1903-December 1905. As the account book of final entry, it summarizes transactions relating to the cement works at Stewartsville; the company offices in West Orange, Philadelphia, and Camden; and the model of Edison's concrete house at the West Orange laboratory. Included are accounts concerning sales and warehouse operations; capital, bond, and interest accounts; and a profit and loss statement for the year 1905. Other entries pertain to the quarries, mill buildings, and machinery at the Stewartsville works. There are also accounts with Edison and with various Edison companies, including the Edison Chemical Works, Edison Manufacturing Co., Edison Storage Battery Co., National Phonograph Co., and New Jersey and Pennsylvania Concentrating Works. The spine is labeled "Ledger 2," "1903 1905," and "Portland Cement." The front cover is marked "12." The book contains 592 numbered pages and an index; some pages are blank.