GPO 312L telephone Designer (Person) Heiberg, Jean Bjerknes, Johan Christian Designer (Organisation) Ericsson GPO Manufacturer Siemens Manufactured for GPO Date 1954
Blue and gold Parkesine sample Designer (Person) Unknown Manufacturer Parkesine Date 1862 - 1868 (circa)
Parkesine exhibition medal Designer (Person) Unknown Manufacturer Unknown Manufactured for Parkesine Date 1862 - 1868 (circa)
Parkesine exhibition medal replica Designer (Person) Unknown Manufacturer Unknown Manufactured for Parkesine Date 1862 - 1868 (circa)