Acoustion battery hearing aid

Made:
1907-1940 in New York

Acoustion battery hearing aid

Details

Category:
Audiology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A153334
Materials:
case, cord, black, case, wood, lining, velvet, microphone, bakelite, earphone, bakelite and head piece, steel
type:
hearing aids
credit:
Wellcome Trust (Purchased from Stevens)