Trimphone telephone Designer (Person) Rowlands, Martyn Manufacturer STC Manufactured for GPO Date 1966 (circa)
Ericofon telephone - new case model Designer (Person) Blomberg, Hugo Lysell, Ralph Thames, Gosta Designer (Organisation) Ericsson Manufacturer Ericsson Date 1964 - 1984
Brown Trimphone telephone Designer (Person) Rowlands, Martyn Manufacturer STC Manufactured for GPO Date 1966 (circa)
Deltaphone telephone Designer (Person) Rowlands, Martyn Manufacturer STC Manufactured for GPO Date 1966 (circa)
Cream Trimphone telephone Designer (Person) Rowlands, Martyn Manufacturer STC Manufactured for GPO Date 1966
Trimline telephone Designer (Person) Genaro, Don Designer (Organisation) Henry Dreyfuss Associates Manufacturer Bell System Date 1965