STC TRIMPHONE PROTOTYPES | ||||||||
| These pictures are of an STC Trimphone, which looks like it
is dated 1966. This is possibly a prototype of the
GPO Telephone No. 712 but is the number 66 the date, as the three hole
casing was superseded by a single case fixing in 1966. No other information is available. Click here for GPO Trimphone history
|
||||||||
Last revised: October 30, 2020FM |
