GPO 312L telephone Designer (Person) Heiberg, Jean Bjerknes, Johan Christian Designer (Organisation) Ericsson GPO Manufacturer Siemens Manufactured for GPO Date 1954
Ericofon 700 Designer (Person) Breger, Carl-Arne Manufacturer Ericsson Manufactured for GPO Date 1980 - 1984
GPO pyramid telephone 162 Designer (Organisation) Siemens GPO Manufacturer Siemens Manufactured for GPO Date 1932
Black GPO telephone Designer (Person) Unknown Manufacturer Unknown Manufactured for GPO Date 1959 (circa)