Round socket and plug Designer (Organisation) Ward and Goldstone Manufacturer Ward and Goldstone Date 1920 - 1929 (circa)
Goltone light switch Designer (Person) Unknown Manufacturer Ward and Goldstone Date 1930 - 1939 (circa)
Crabtree light switch Designer (Organisation) Crabtree Electrical Manufacturer Crabtree Electrical Date 1928 (circa)
A Crabtree No.4 light switch Designer (Organisation) Crabtree Electrical Manufacturer Crabtree Electrical Date 1935 - 1945 (circa)