Sonotone Model 451 Hearing Aid
date: label: date made
content: ca 1937
notes: label: Description
content: Sonotone hearing aid, model 451, serial #162964, with air and bone conduction receivers. Inscriptions read "SONOTONE / REG.U.S.P.O. / U.S. PAT. No 1811638 / 162964 / OTHER PATS. PEND. / MADE IN U.S.A./ NEW YORK This dates from 1937 and was given to the Smithsonian in 1945.
label: Description
content: Ref: Hugo Lieber, “Earphone Transmitter,” U.S. Patent 1,811,638 (June 23, 1931), assigned to Sonotone Corporation.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, Elmsford
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Sonotone Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-05282
label: accession number
content: 169582
label: catalog number
content: M-05282
label: serial number
content: 162964
label: accession number
content: 169582
objectType: label: Object Name
content: Hearing Aid
label: Object Name
content: hearing aid
label: Other Terms
content: Hearing Aid; Prostheses
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: fabric (overall material)
label: Physical Description
content: burgundy (overall color)
label: Physical Description
content: brown (overall color)
label: Physical Description
content: black (overall color)
label: Measurements
content: overall: 2.5 cm x 7.8 cm; in x 3 1/16 in
label: Measurements
content: overall: 1 3/4 in x 11 in x 3 7/8 in; 4.445 cm x 27.94 cm x 9.8425 cm