This pocket notebook was used by Clarence B. Fargo at the American Graphophone Co.'s plant in Bridgeport, Connecticut, during September-November 1895 for notes on phonograph wax cylinder experiments. The National Phonograph Co. used this book (as well as PN-91-09-29, Miscellaneous Notebooks) as exhibits in patent litigation initiated by the Graphophone Co., and the books subsequently were retained at Edison's laboratory. The front cover is stamped "Memoranda." The back cover is inscribed "U.S. Cir Ct Dist of N.J. American Graphophone vs National Phonograph Co No 18 In Equity Defendants Exhibit Fargo Original Note Book No H.D.D. Exm." The book contains 103 numbered pages.
Blank pages: 10-11, 18-39, 42-47, 50-59, 64-65, 70-73, 76-85, 94-97, 100-101. Courtesy of Thomas Edison National Historical Park.