Polarized relay
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 Marshall N. Waterman, Frances Waterman and Ruth Waterman Ritch
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313457
label: catalog number
content: 313457
label: accession number
content: 187068
objectType: label: Object Name
content: Relay, Polarized
label: Object Name
content: relay
label: Other Terms
content: Relay, Polarized; Components; Telephone and Telegraph; Telephone and Telegraph
physicalDescription: label: Measurements
content: overall: 7 in x 7 1/4 in x 11 1/2 in; 17.78 cm x 18.415 cm x 29.21 cm