Sonotone Model 520 Hearing Aid
date: label: date made
content: ca 1939
name: label: maker
content: Sonotone Corporation
notes: label: Description
content: Sonotone hearing aid, model 520, serial #H-6240, with air and bone conduction receivers. This dates from 1939 and was given to the Smithsonian in 1945.
label: Location
content: Currently not on view
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-05283
label: catalog number
content: M-05283
label: accession number
content: 169582
objectType: label: Object Name
content: hearing aids
label: Other Terms
content: Medicine