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Locomotion
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Locomotion
National Railway Museum
National Science and Media Museum
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Image
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4
Non-Commercial Use
4
Category
Audiology
4
Collection
Sir Henry Wellcome's Museum Collection
4
Object type
hearing aids
4
Material
earpiece, vulcanite
4
trumpet, vulcanite
4
tube, rubber
2
tube, silk
2
flex covering, fabric
1
trumpet, rubber
1
tube, cotton
1
tube, felt
1
Date
From
To
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Conversation tube hearing aid, probably English, 1870-1895
1870-1895
Conversation tube hearing aid
1840-1900
Conversation tube hearing aid
1851-1900
Vulcanite conversation tube hearing aid
1860-1920