Edison, Thomas A. (Thomas Alva) 1847-1931 creator mixed material monographic eng ger 17 1 1 Correspondence, letters of introduction, and telegrams concerning Edison's inventions such as the electric light, electric pen, graphophone, and phonograph; and sale of letters of patent to the Edison Electric Light Company. Topics include injury caused by cigarettes and a visit from Mark Twain. Correspondents include George H. Bliss, John Dean, and Werner von Siemens. Open to research. In part, positive and negative photocopies and typewritten transcripts produced from originals in the hands of Walter William Boyd. Washington, D.C. : Library of Congress Photoduplication Service, 1951. Inventor. Collection material in English, with German. Forms part of: Miscellaneous Manuscripts collection. Bliss, George H Correspondence Dean, John 1850-1943 Correspondence Siemens, Werner von 1816-1892 Correspondence Twain, Mark 1835-1910 Edison Electric Light Company. Cigarettes Electric lighting Inventions United States Patents Pens Phonograph Inventors mm 79001323 Open to research. DLC 790503 20260227111635.0 mm 79001323