GEC 711 Prototypes

These pictures are from the GEC Telephone Works at Coventry. They were taken by the marketing department and show different stages of development of the GPO Telephone No. 711, which GEC also sold as the Tel/2w.

Picture dated - July 1960
Strange looking screw under the case and the case only has provision for one
additional press button on the front of the case

Picture dated - October 1960
Case fixings show - underneath the handset rest

Picture dated - October 1960

Picture dated - October 1960
The regulator is the same one from a 706 telephone. Later 711's have
the regulator in the base and sideways

Picture dated - February 1961
Externally looking like the production model, but the fixing screw is not located by the handset cord as yet

Picture dated - August 1961
Picture showing wall fixing bracket exposed. Also note that the press button switch
switch at the top of the phone is fitted with two screws.
The regulator is now in it's production position

Picture dated - August 1961
Close up of the additional switch unit. The buttons are not production style

Picture dated - August 1961
Break down of additional components - these would be fitted as and when as extras.
From left to right - lamps in holder, long buttons, lower centre is a Local Battery Adaptor
(switch and choke coil), above centre is the four switch unit, trembler bell and
bottom right the single press button on mounting with the case blanking plates