2-pin connector socket and plug Designer (Person) Unknown Manufacturer Ward and Goldstone Date 1930 - 1939 (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)
Bayonet 2-bulb adapter Designer (Organisation) Ward and Goldstone Manufacturer Ward and Goldstone Date 1940 (circa)
Triangular Sanders plug Designer (Organisation) William Sanders & Company Manufacturer William Sanders & Company Date 1934 - 1950 (circa)