Reference Materials
name: label: Collection Creator
content: Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
setName: label: See more items in
content: William J. Hammer Collection
unitdate: label: Date
content: 1870-1989
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0069, Series 3
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents note
content: 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.