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 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was superseded by a single case fixing in 1966.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
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Last revised: April 25, 2012FM |
