Ayrton & Perry's spring ammeter
name: label: maker
content: Ayrton & Perry
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.331148
label: accession number
content: 294351
label: catalog number
content: 331148
label: collector/donor number
content: 20-01
objectType: label: Object Name
content: Ammeter
physicalDescription: label: Physical Description
content: wood (part: material)
label: Physical Description
content: metal (part: material)
label: Physical Description
content: brass (part: material)
label: Physical Description
content: glass (part: material)
label: Physical Description
content: paper (part: material)
label: Measurements
content: overall: 6 in x 8 1/2 in x 11 1/2 in; 15.24 cm x 21.59 cm x 29.21 cm