telegraph key
date: label: date made
content: ca. 1880
label: date made
content: ca 1880
notes: label: Description (Brief)
content: Repeating sounder or a transmitter for duplex system. No maker's name extant. Used in a suit against the Western Union Telegraph Company by Moses G. Farmer.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Sarah J. Farmer
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.181949
label: catalog number
content: 181949
label: accession number
content: 2015.0173
objectType: label: Object Name
content: Relay, Telegraph
label: Object Name
content: telegraph relay
label: Object Name
content: telegraph key
label: Object Name
content: telegraph key or relay
label: Object Name
content: telegraph transmitter
physicalDescription: label: Measurements
content: overall: 4 in x 7 in x 3 3/4 in; 10.16 cm x 17.78 cm x 9.525 cm