telegraph demonstration device
date: label: date made
content: ca 1972
name: label: maker
content: Western Electric
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 C. H. McDonald, through T. Boyle
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.312604.03
label: accession number
content: 312604
label: catalog number
content: 312604.03
objectType: label: Object Name
content: Demonstration Device
label: Object Name
content: telegraph demonstration device
label: Other Terms
content: Demonstration Device; Telegraphy
physicalDescription: label: Measurements
content: overall: 16 1/8 in x 9 1/8 in x 8 1/2 in; 40.9575 cm x 23.1775 cm x 21.59 cm
label: Measurements
content: key: 1 1/2 in x 3 1/4 in x 5 in; 3.81 cm x 8.255 cm x 12.7 cm
label: Measurements
content: sounder: 4 1/2 in x 5 1/2 in x 3 in; 11.43 cm x 13.97 cm x 7.62 cm
label: Measurements
content: resonator: 15 1/4 in x 6 3/4 in x 5 in; 38.735 cm x 17.145 cm x 12.7 cm