This instrument of moulded Bakelite has been specially arranged and adapted for use in hotels, factories, offices, shops and for domestic purposes where a simple two-way telephone circuit with modern high-grade instruments is required.
By using a system of code ringing more than two stations can be connected to a circuit. Fitted with a DC bell.
For fixing to a wall, a bracket N8531 is supplied.
Dimensions 6.5 x 9.25 x 5.75 inches.
Weight 4.3 lb.
Effectively an intercom telephone that can use local or central batteries.
Taken from the Ericsson Telephone Catalogue, edition No. 26, 1935 Supplement
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