TELEPHONE No. 131

Wooden cased wall telephone used with Boxes, Coin Collecting No. 14 in Automatic and C.B. exchange areas.  These would normally be fitted in Kiosks No's 1, 2, 3 and 4.

Initially they were not fitted with a dial, but latter supplies were supplied with a dummy dial.

The early type used a Transmitter No. 1 which could have Label No. 43A fitted between the speaking tube and the transmitter body.  This label advised of the Exchange name and number.

The picture shows the Label No. 43A which also has instructions of how to obtain trunk calls.

When used on a CB Exchange a Relays and Coils No. 29AN is also fitted.

Introduced circa 1932.

The Mark 234 Telephone includes:-
1 x Bell No. 1A, unmounted.
1 x Coil, Induction No. 14.
1 x Condenser, M.C. No. 102.
2 x Cord, Instrument No. 116.
1 x Cord, Instrument No. 222, waterproof.
1 x Hook, Receiver F.
1 x Plate, Escutcheon No. 4.
1 x Switch, Receiver No. 2.
1 x Frame, Notice No. 1 (early).
1 x Glass No. 3 (early).
1 x Mounting, Dial, Automatic No. 7 (later).
1 x Dial, Dummy, No.4 (later).
1 x Transmitter No. 1.
1 x Receiver, Bell No. 1A.

Requisitioned separately:-
1 x Dial, Automatic No. 11.

Circuit diagram - N231.
Circuit diagram - CB 1429.

Other diagrams
Wiring - N1170.
Explanatory - N1172.
CB Exchange explanatory - N1186.
Relays and Coils No. 29AN - N1187.

Last revised: March 16, 2026