GEC 3-pin plug Designer (Organisation) General Electric Manufacturer General Electric Date 1920 - 1929 (circa)
Surface mountable guage cover Designer (Person) Unknown Manufacturer Unknown Date 1910 - 1940 (circa)
Bayonet fitting light adaptor Designer (Person) Unknown Manufacturer Unknown Date 1920 - 1959 (circa)
Switch component Designer (Organisation) Ward and Goldstone Manufacturer Ward and Goldstone Date 1920 - 1960 (circa)
Wandsworth plug Designer (Organisation) Wandsworth Electrical Manufacturing Co. Manufacturer Wandsworth Electrical Manufacturing Co. Date 1920 - 1929 (circa)
Round socket and plug Designer (Organisation) Ward and Goldstone Manufacturer Ward and Goldstone Date 1920 - 1929 (circa)