Gray 2-octave harmonic telegraph transmitter
date: label: Date made
content: June or July 1874
name: label: maker
content: Elisha Gray
notes: label: Description (Brief)
content: Two Octave Musical Telegraph Transmitter, Elisha Gray. Veneer rosewood case, hinged cover closes rear half consisting of twelve electromagnets with hinged armatures and adjustable platinum pointed contacts. Front half consists of piano keyboard (15 white keys and 10 black keys). Constructed June or July 1874, exhibited in London in August or September 1874.
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.214294
label: catalog number
content: 214294
label: accession number
content: 38810
objectType: label: Object Name
content: Telegraph Transmitter
physicalDescription: label: Measurements
content: overall: 6 in x 18 1/2 in x 15 in; 15.24 cm x 46.99 cm x 38.1 cm