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Locomotion
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Category
Audiology
2
Maker
Siemens and Halske AG
1
Object type
hearing (aids)
2
hearing aids
2
ear trumpets
1
electrical
1
fortiphone
1
Place
Berlin
1
Material
earpiece, metal
2
case, leatherette
1
connector, plastic
1
covering, leather, black
1
earpiece, plastic
1
earpiece, vulcanite
1
microphone, plastic
1
Date
From
To
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"Fortiphone" battery hearing aid, cased, by Siemens and Halske, Berlin, 1900-1940
"Fortiphone" battery hearing aid, cased, by Siemen
Audiology
1900-1940
Long leather covered ear trumpet, mechanical hearing aid, European, 1880-1910
Long leather covered ear trumpet, mechanical heari
Audiology
1880-1910
