Keystone direct current ammeter
name: label: maker
content: Keystone
label: maker
content: Keystone Electrical Instrument Co.
notes: label: Description (Brief)
content: Marked: "D.C. Ammeter / No. 13692 / Keystone Electrical Instrument Co. / Philadelphia, Pa." A DC ammeter in a square case with mahogany finish. Panel is black metal, scale: 0-50 amps. Leather carry strap.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321445
label: accession number
content: 241556
label: catalog number
content: 321445
objectType: label: Object Name
content: ammeter
physicalDescription: label: Measurements
content: overall: 5 3/8 in x 2 7/8 in x 6 in; 13.6525 cm x 7.3025 cm x 15.24 cm