"I . . . WORKED FIVE CONSECUTIVE DAYS AND FIVE . . . NIGHTS WITHOUT ANY SLEEP" (INVENTORS.) EDISON, THOMAS A. Typed Letter Signed, to George E. Larrabee, describing how much work was required in order to prepare the first phonograph in time for the Exposition Universelle in 1889. 1 page, small 4to, "From the Laboratory of Thomas A. Edison" stationery; mounted to a sheet trimmed to size, faint scattered staining, folds. Orange, NJ, 13 August 1922
". . . I take pleasure in informing you that the occasion when myself and assistants worked five consecutive days and five consecutive nights without any sleep was at the time we were getting the first phonograph model in readiness for the Paris International Exhibition, held in the year 1888 . The phonograph had to be shipped on a certain day, and with the continuous work spoken of above, we did it."