This pocket notebook covers the period December 1877-February 1878 and contains the account of Charles P. Edison. The book also records payments made to three workmen in February 1878. The front cover is marked "Newark Telegraph Works in a/c with American Tel. Works." The inscription "C P Edison" appears on the top right corner of the cover. Eight pages of this unnumbered book have been used. Courtesy of Thomas Edison National Historical Park.