Cavendish Hotel, London

Meter reading - These are the telephone extension meters for each room

Meter reading - Note that each meter is reset to zero after being read

Reception desk - Message waiting panel is centre

Reception desk - Message waiting panel is central. Note the pendant telephones with neon lights in the handsets. The dial can be slide back under the desk.

Teleprinter

PABX 3 Switchboards. To the right of the Switchboard is a vacuum tube system

Mr Joe Louis using a deak phone (note the lamps for message waiting)

Bathroom phone - Telephone No. 711CB (no dial)

Bedroom phone - Telephone No. 711 with lamps, one of which would be used for message waiting

PABX 3 equipment - General view of the equipment

PABX 3 equipment - Closest rack has Line Finders whilst it looks like Exchange Line relaysets on the furthest rack

Subscribers Private Meter Units - These pick up the meter pulse from the GPO exchange and the relay in the unit operates the extension meter

PABX 3 equipment - 1st selector and maid service rack