11/13/1881 Hammer, William Joseph to Hammer, William Alexander
(New York Sun; New York World; New York Herald; London Times; New York Times; Journal of the Telegraph; Exhibition. Paris International (1881); Exhibition. London Electric (1882); Johnson, Edward Hibberd; Spurgeon, John J [supplied or conjectured]; Edison, Thomas Alva) Expositions, demonstrations, lectures; Electric light and power
[X098A]  Smithsonian Institution, Washington, D. C. -- National Museum of American History Archives Center: William J. Hammer Collection -- Correspondence (1879-1930)
[X098A008; TAEM 0:0]
Courtesy of the NMAH Archives Center.