Hearing Aid
notes: label: Description
content: Hearing aid of the sort termed a conversation tube. The mouth and ear piece are made of bone.
label: Description
content: Ref. George Tieman & Co., <i>American Armamentarium Chirurgicum</i> (New York, 1879), p. 53.
label: Description
content: Charles Truax, <i>The Mechanics of Surgery</i> (Chicago, 1899), p. 796.
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: MG.M-10704
label: catalog number
content: M-10704
label: accession number
content: 254866
objectType: label: Object Name
content: hearing aid
label: Object Name
content: ear trumpet
label: Object Name
content: hearing aid, conversation tube
physicalDescription: label: Physical Description
content: bone; fabric (overall material)
label: Measurements
content: overall: 1 5/8 in x 9 1/2 in x 12 7/8 in; 4.1275 cm x 24.13 cm x 32.7025 cm
label: Measurements
content: overall: 28 1/2 in x 1 5/8 in; 72.39 cm x 4.1275 cm