Hearing Aid

Hearing Aid

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Usage conditions apply
Swan-shaped ear trumpet made of metal with an ivory tip. The form was termed a London hearing dome or grand opera dome.
Ref: Charles Truax, The Mechanics of Surgery (Chicago, 1899), p. 798.
Irving Wilson Voorhees, “Mechanical Aids to Hearing” in Thomas Lathrop Steadman, ed., A Reference Handbook of the Medical Sciences (New York, 1915), vol. 5, p. 45.
Currently not on view
Object Name
Hearing Aid
hearing aid, ear trumpet
Other Terms
Hearing Aid; Prosthesis; Ear Trumpet
Associated Place
United States: New York, New York City
Physical Description
metal, brass (overall material)
rubber, hard(?) (overall material)
overall: 11.5 cm x 8.2 cm x 5.9 cm; 4 1/2 in x 3 1/4 in x 2 5/16 in
overall: 4 1/2 in x 3 in x 2 3/8 in; 11.43 cm x 7.62 cm x 6.0325 cm
ID Number
accession number
catalog number
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History
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