secret sounder headphone
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.332271
label: accession number
content: 294351
label: accession number
content: 294351
label: catalog number
content: 332271
objectType: label: Object Name
content: Sounder, Secret
label: Object Name
content: sounder,
label: Object Name
content: telegraph receiver
label: Object Name
content: headphone
label: Object Name
content: headset
physicalDescription: label: Physical Description
content: plastic (part: material)
label: Physical Description
content: steel (part: material)
label: Measurements
content: speaker only: 1 3/8 in x 2 1/2 in; 3.4925 cm x 6.35 cm