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Image
Has Image
5
Non-Commercial Use
5
Category
Telecommunications
5
Maker
David Moseley & Sons
4
Alan Archibald Campbell Swinton
1
Swinton, Alan Archibald Campbell
1
Object type
telephone transmitter
5
Place
Manchester
4
Manchester, Manchester urban district, Greater Manchester, England, United Kingdom
4
Material
wood (unidentified)
4
brass (copper, zinc alloy)
1
metal (unknown)
1
Date
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Swinton's microphonic telephone transmitter
1884
Telephone transmitter
circa 1880
Granular carbon-type telephone transmitter
circa 1885
Telephone transmitter
circa 1880
Telephone transmitter with induction coil
circa 1885
