Copper-Couprous oxide rectifier
date: label: date made
content: c 1920
label: date made
content: ca 1920
name: label: maker
content: Union Switch and Signal Company
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Lars O. Grondahl thru W. James King
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323406
label: catalog number
content: 323406
label: accession number
content: 252184
objectType: label: Object Name
content: rectifier
physicalDescription: label: Measurements
content: overall: 4 7/8 in x 5/8 in; 12.3825 cm x 1.5875 cm