McVitie Weston valve collection, GEC valve, type A.R.
GEC valve, type A.R., anode distorted and filament broken, (RMW/C1 - McVitie Weston number), by General Electric Company Limited.
GEC valve, type A.R., anode distorted and filament broken, (RMW/C1 - McVitie Weston number), by General Electric Company Limited.