Reference Materials

Object Details

Collection Creator: Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)

Collection Citation: William J. Hammer Collection, Archives Center, National Museum of American History

Collection Rights: Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Scope and Contents note: This series consists of thirty-four boxes of reference materials, including advertisements, articles, bulletins, catalogues and guides, gazettes, journals, pamphlets, news clippings, portraits, scientific papers, scrapbooks, and theses. These materials furnish information on many aspects of electricity including electric lamps, electric trains, electric railways, electric signs, the domestic application of electricity, and biographical materials relating to the history of electricity; the Poulsen telephone; storage batteries; and World Expositions. There is also reference material on phosphorescence; radium; selenium; U.S. patent specifications and other patent materials. The last two boxes in the series contain miscellaneous reference materials.