GPO 312L telephone Designer (Person) Heiberg, Jean Bjerknes, Johan Christian Designer (Organisation) Ericsson GPO Manufacturer Siemens Manufactured for GPO Date 1954
GPO pyramid telephone 162 Designer (Organisation) Siemens GPO Manufacturer Siemens Manufactured for GPO Date 1932
Panasonic EF 6157 car phone Designer (Person) Unknown Manufacturer Matsushita Date 1990 - 1999 (circa)