Introduced in 1947, this Bakelite cased, combined table handset telephone was used by the BPO in Auto areas with a Bellset No. 41 on shared service separate metering lines.

The case has provision for one press button only and was supplied with a label stating "Call Exchange".

Superseded by the Telephone No. 312 in 1949.

The wall equivalent is the Telephone No. 311.

Made By Ericsson, model N1003M1

Picture by Paul Follet.

Telephone Includes (1956):-
1 x Bell No. 59A, Unmounted.
1 x Bell-gong No. 2.
1 x Bell-gong No. 2A Nickelled.
1 x Block, Terminal No. 20/8, Black.
1 x Capacitor, M.C. No. 97.
1 x Coil, Induction No. 27.
1 x Cord, Instrument No. 5/14B, Brown
1 x Cord, Instrument No. 5/28E, 5".
1 x Dial, Automatic No. 12 ...
1 x Key No. 302B.
1 x Part No. 2/SCA/20, Black.
1 x Telephone No. 164, Black.
1 x Tray, D62076 Black.

Diagram for telephone circuit - N410.

Diagram for Button labels - N620.

Drawing - 63022.

History, Technical and General Information on 300 type telephones

Collectors information

Keys for use in 300 type Wall and Table Telephones

Lamp Fittings

Adjustment of Magneto bells

Labels that fit in the sliding tray

How to wire your Telephone No. 310 to make it work on Plug and Socket

Comparison chart of GPO 300 type telephones

Some models made by British Ericsson, their model N1003B


Internal View of the Telephone No. 310

Note the Telephone Number and date between the bell gongs

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Last revised: November 20, 2021