09/17/1875 Mullarkey, P to Edison, Thomas Alva
(New York Central Railroad; Union Pacific Railroad Co; Mixer, Charles H; Fairbanks Morse & Co) Sales and service; Electric pen and mimeograph
[D7504]  Document File Series -- 1875: (D-75-04) Electric Pen
[D7504C; TAEM 13:258]
Courtesy of Thomas Edison National Historical Park.