Telegraph Key
notes: label: Description (Brief)
content: Semi-automatic keys like this small unit automatically produced rapid morse code dots by using a weighted pendulum to quickly make and break contact in the electrical circuit. The operator would make the dashes manually but could send much faster than with an ordinary key. In this example, the key is mounted on the side.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
label: See more items in
content: Telegraph Keys
label: See more items in
content: Communications
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.331900
label: accession number
content: 294351
label: catalog number
content: 331900
objectType: label: Object Name
content: key
label: Object Name
content: telegraph key
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: cloth (overall material)
label: Measurements
content: overall: 2 1/2 in x 5 7/8 in x 3 in; 6.35 cm x 14.9225 cm x 7.62 cm