TELEPHONE No. 57
Local Battery wooden wall telephone using a transmitter on a moveable arm.

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Superseded by Telephones No. 1 and No. 101.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

 

 
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: December 29, 2024

FM