|Click here for STC Trimphone Prototypes
Many of these prototypes were designed to meet the GPO's call for a luxury boudoir telephone in the early 1960's (SCP201). The GPO chose the Trimphone which was available circa 1966 as the GPO Telephone No. 712. Click here for the GPO SCP201 - which is referenced on the back board of the stand show below.
STC initially called the prototype the Fairyphone but renamed the telephone the Deltaphone and sold it worldwide.
Are the telephones below prototypes or not and did they make it to production?
Judging by the internal construction they look like house intercom telephones.
Prototype in painted wood (Blue)
Prototype in Plastic (Grey)
Last revised: October 11, 2023