TELEPHONE No. 10
C.B. Candlestick with press button fitted in the base. The button was made of ebonite.
This telephone can be have an additional receiver hook fitted. This was ordered separately and for the Mark 235 was the Hook, Receiver D.
There was a Mark 234 and a Mark 235.Telephone includes (1928):-
1 x Receiver, Bell, No. 1A.
1 x Cord, Instrument, 2/22B Brown 33".
1 x Transmitter No. 1.
1 x Transmitter-inset No. 3.
2 x Cord, Instrument, 1/16F Black 12".
Telephone includes (1946):-
Introduced circa 1907 and still in the GPO stores catalogue (Rate Book) in 1928 and 1946.
The picture to the right shows an earlier variant, later variants looked like the standard British candlestick (see picture below).
The press button was used to call a buzzer on another phone to advise there was a call for them.
Circuit diagram - N110.
Drawing No. 7026 (Mark 235 dated 1911).
Specification - D194.
Last revised: December 26, 2020