Register of the William J. Hammer collection, c1874-1935; 1955-1957
By: by Robert S. Harding.
Contributors: Harding, Robert S. 1944-
Publisher: Archives Center, National Museum of American History, Smithsonian Institution
Place of publication: Washington, D.C
Number of pages: 97
Subjects: Hammer, William Joseph, -- 1858-1934 -- Archives.; Electric engineering.