Gray "organ pipe" harmonic telegraph circuit breaker
date: label: Date made
content: 1874
name: label: maker
content: Elisha Gray
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 Delia Gray
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.214298
label: catalog number
content: 214298
label: patent number
content: 173460
label: accession number
content: 38810
objectType: label: Object Name
content: Telegraph Transmitter
label: Object Name
content: telegraph transmitter
label: Other Terms
content: Telegraph Transmitter; Harmonic Telegraph; Transmitter
physicalDescription: label: Measurements
content: overall: 3 1/2 in x 27 in x 2 3/8 in; 8.89 cm x 68.58 cm x 6.0325 cm