Western Electric tangent galvanometer 
date: label: date made
content: ca 1870
name: label: maker
content: Western Electric
setName: label: See more items in
content: Work and Industry: Electricity
label: Exhibition
content: Lighting a Revolution
label: Exhibition Location
content: National Museum of American History
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.332099
label: accession number
content: 294351
label: catalog number
content: 332099
label: collector/donor number
content: 100-678
objectType: label: Object Name
content: Galvanometer, Tangent
label: Object Name
content: galvanometer
label: Other Terms
content: Galvanometer, Tangent; Measuring Devices
physicalDescription: label: Physical Description
content: rubber (part: material)
label: Physical Description
content: glass (part: material)
label: Physical Description
content: brass (part: material)
label: Physical Description
content: copper (part: material)
label: Physical Description
content: steel (part: material)
label: Measurements
content: overall: 8 1/2 in x 7 1/2 in x 8 in; 21.59 cm x 19.05 cm x 20.32 cm