Siemens Model 21 Hearing Aid
name: label: maker
content: Siemens & Halske
notes: label: Description
content: Siemens & Halske, an important German instrument firm, began making hearing aids around 1910. This example, given to the Smithsonian in 1945, is a model #21, serial #13675, with amplifier and small metal-cased receiver.
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-05269
label: catalog number
content: M-05269
label: accession number
content: 169582
objectType: label: Object Name
content: hearing aids
label: Other Terms
content: Medicine
physicalDescription: label: Measurements
content: overall: 4 in x 5 in x 5 in; 10.16 cm x 12.7 cm x 12.7 cm