Ayrton & Perry direct reading spring ammeter
name: label: Maker
content: Western Union Corporation
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.331442
label: accession number
content: 294351
label: accession number
content: 294351
label: catalog number
content: 331442
objectType: label: Object Name
content: Ammeter
physicalDescription: label: Physical Description
content: wood (part: material)
label: Physical Description
content: glass (part: material)
label: Physical Description
content: brass (part: material)
label: Physical Description
content: metal (part: material)
label: Physical Description
content: paper (part: material)
label: Measurements
content: overall: 6 in x 5 3/8 in x 5 3/8 in; 15.24 cm x 13.6525 cm x 13.6525 cm