McVitie Weston valve collection, Tungsram valve, type PV 100/2000
Tungsram valve, type PV 100/2000, one anode support broken, (RMW/A173 - McVitie Weston number), by Tungsram Electric Lamp Works (Gt. Britain) Ltd..
Tungsram valve, type PV 100/2000, one anode support broken, (RMW/A173 - McVitie Weston number), by Tungsram Electric Lamp Works (Gt. Britain) Ltd..