Telescopic ear trumpet hearing aid

Telescopic hearing trumpet, brass with black finish, by Dowling

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Telescopic hearing trumpet, brass with black finish, by Dowling
Science Museum Group
© The Board of Trustees of the Science Museum

Telescopic ear trumpet hearing aid, brass with black finish, by R. J. Dowling, London, 1901-1950.

Details

Category:
Audiology
Object Number:
1988-566
Materials:
brass
type:
hearing aid
credit:
Farnborough Hospital