Hearing Aid
date: label: date made
content: \
notes: label: Description
content: Hearing aid with a “PHONOPHOR / AMERICAN PHONOPHOR CORPORATION / 19 WEST 44TH STREET, NEW YORK” inscription in the lid of the case. Siemens & Halske introduced its first hearing aid in 1913, under the trade name Esha-Phonophor (where Esha stood for S and H). The American Phonophor Corp. was in business by 1922.
label: Description
content: Ref: American Phonophor Corp. ad in The Optical Journal and Review (July 6, 1922): 24.
label: Description
content: American Phonophor Corp. ad in New York Times (Aug. 13, 1922), p. 59.
label: Location
content: Currently not on view
place: label: Associated Place
content: United States: New York, New York City
setName: label: See more items in
content: Medicine and Science: Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN83519U48
objectType: label: Object Name
content: hearing aid
label: Other Terms
content: Medicine
physicalDescription: label: Measurements
content: overall, case: 3 in x 5 3/4 in x 4 1/4 in; 7.62 cm x 14.605 cm x 10.795 cm