Brown Trimphone telephone Designer (Person) Rowlands, Martyn Manufacturer STC Manufactured for GPO Date 1966 (circa)
Viscount telephone Designer (Person) Carr, Peter Howett, Fred Hiner, Peter Designer (Organisation) STC Manufacturer STC Manufactured for BT Date 1981 - 1989 (circa)
Southwestern Bell Freedom Phone, model FF1150 telephone Designer (Person) Unknown Manufacturer Southwestern Bell Date 1994
Deltaphone telephone Designer (Person) Rowlands, Martyn Manufacturer STC Manufactured for GPO Date 1966 (circa)