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Ader "bull ring" receiver

Ader "bull ring" receiver

Louis-Clément Breguet
circa 1881
Ader "bull ring" receiver

Ader "bull ring" receiver

Louis-Clément Breguet
circa 1881
Ader finger-ring receiver

Ader finger-ring receiver

Clement Ader
1881
Ader no-diaphragm receiver

Ader no-diaphragm receiver

Clement Ader
circa 1878
Ader no-diaphragm receiver

Ader no-diaphragm receiver

Clement Ader
circa 1878
AT&T Elite 305 streamlined memory phone

AT&T Elite 305 streamlined memory phone

American Telephone and Telegraph Company
1984
AT&T receiver

AT&T receiver

Western Electric Company
1895-1899
AT&T receiver

AT&T receiver

Western Electric Company
circa 1900
Bell #10 deskset ringer box

Bell #10 deskset ringer box

Western Electric Company
circa 1897
Bell #10 deskset ringer box

Bell #10 deskset ringer box

Western Electric Company
1897-1898
Bell hard rubber receiver/ transmitter

Bell hard rubber receiver/ transmitter

National Bell Telephone Company
1879
Bell hard rubber receiver/ transmitter

Bell hard rubber receiver/ transmitter

National Bell Telephone Company
1879
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