10/28/1904 Sprague, Frank Julian to Martin, Thomas Commerford
(Thomson, Elihu; Tesla, Nikola; Edison, Thomas Alva) Electric traction
[X120C]  New York Public Library, New York, N.Y. -- Manuscripts and Archives Division: Frank J. Sprague Papers
[X120CCL; TAEM 0:0]
Courtesy of The New York Public Library, Astor, Lenox, and Tilden Foundations.