Hearing Aid
date: label: date made
content: 1910 - 1928
name: label: maker
content: Acousticon
notes: label: Description
content: The Acousticon model SRD is a dual microphone carbon hearing aid manufactured between 1910 and 1928. Inscriptions on this example read “ACOUSTICON” and “TYPE SRD / NO. . . . / GENERAL ACOUSTIC CO.” and “PATENTED IN UNITED STATES OCT. 28, 02, FEB. 10, 07, . . .. AND IN ENGLAND, GERMANY, FRANCE AND BELGIUM”. The Hutchinson Acoustic Co. registered “ACOUSTICON” as a trademark on Dec. 2, 1902.
label: Location
content: Currently not on view
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: 1978.0328.40
label: catalog number
content: 1978.0328.40
label: accession number
content: 1978.0328
objectType: label: Object Name
content: hearing aid
physicalDescription: label: Measurements
content: overall: 15/16 in x 3 1/2 in x 5 7/8 in; 2.38125 cm x 8.89 cm x 14.9225 cm