TELEPHONE No. 57 | |||||||
![]() Used in the Bristol telephone exchange area. Fitted with a Receiver, Bell No. 1A and a Transmitter No. 13, which is fitted with a Mouthpiece No. 4. Superseded by Telephones No. 1 and No. 101. Circuit diagram is dated 1917, but not found in the 1928 Rate Book. Circuit diagram -
N157. This picture is dated 1900
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Last revised: December 29, 2024FM |