Duro-point propelling pencil Designer (Person) Unknown Manufacturer Conway Stewart Date 1930 - 1939 (circa)
Green Duro-point propelling pencil Designer (Person) Unknown Manufacturer Conway Stewart Date 1930 - 1939 (circa)
Pealised red propelling pencil Designer (Person) Unknown Manufacturer Conway Stewart Date 1930 - 1939 (circa)
Art Deco style switched socket Designer (Organisation) Crabtree Electrical Manufacturer Crabtree Electrical Date 1930 - 1939 (circa)
Egg shaped push-through switch Designer (Organisation) Crabtree Electrical Manufacturer Crabtree Electrical Date 1930 - 1949 (circa)
Contactum 3-pin switched socket Designer (Organisation) Contactum Manufacturer Contactum Date 1937 - 1939 (circa)
2-Pin Crabtree plug Designer (Organisation) Crabtree Electrical Manufacturer Crabtree Electrical Date 1930 - 1939 (circa)
Crawford's carton opener Designer (Person) Unknown Manufacturer Unknown Manufactured for Crawford's Date 1930 - 1939 (circa)
Crabtree Lincoln light switch Designer (Person) Unknown Manufacturer Crabtree Electrical Date 1928 - 1939 (circa)