Wall mounted house telephone with handset, press button switch and trembler bell (DC) all mounted on a wooden base.

Fitted in pairs and used in lieu of a speaking tube between two rooms only.

Uses a Telephone No. 30 as the handset.

Made obsolete in 1947.

Telephone includes (1928):-
1 x Hook for Micro-telephone Mounted.
1 x Bell, trembler.
1 x Press button.
1 x Telephone No. 30.

Diagram T.L. 230.

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Last revised: September 24, 2019