TELEPHONE No. 142

A C.B.S 1, candlestick, table telephone used on the Bartholomew House Exchange System.

This telephone differs from other Candlesticks in so much as the switch hook consists of two spring sets of which one set breaks two springs when off hook and the other, which consists of threes springs, all make contact when off hook.

Used with Bellset No. 17.

Telephone Includes (1928):-
2 x Cords, Instrument No. 116.
1 x Cord, Instrument No. 222.
1 x Cord, Instrument No. 422.
1 x Hook, Receiver F.
1 x Transmitter No. 1.
1 x Receiver, Bell No. 1A.

Circuit diagram - N242 (Dated 1924).

Circuit diagram - CB 1257.

Termination markings

Last revised: July 25, 2026