Western Union tangent galvanometer for line testing
date: label: date made
content: ca. 1875
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 Western Union Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.331072
label: accession number
content: 294351
label: catalog number
content: 331072
label: collector/donor number
content: 100-286
objectType: label: Object Name
content: Tangent galvanometer for line testing
label: Object Name
content: galvanometer
physicalDescription: label: Physical Description
content: rubber (part: material)
label: Physical Description
content: brass (part: material)
label: Physical Description
content: glass (part: material)
label: Measurements
content: overall: 9 in x 15 in x 20 in; 22.86 cm x 38.1 cm x 50.8 cm