Roller-Smith C.A.R. 330 current-squared meter
name: label: maker
content: Roller-Smith Co.
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 the United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313538
label: catalog number
content: 313538
label: accession number
content: 188571
label: serial number
content: 61254 A.R.
label: collector/donor number
content: R-2115
objectType: label: Object Name
content: Ammeter
label: Other Terms
content: Ammeter; Measuring Devices
physicalDescription: label: Measurements
content: overall: 2 1/4 in x 4 1/2 in; 5.715 cm x 11.43 cm