McVitie Weston valve collection, Tungsram valve, type V2018
Tungsram valve, type V2018, (RMW/A168B - McVitie Weston number), by Tungsram Electric Lamp Works (Gt. Britain) Ltd.
Tungsram valve, type V2018, (RMW/A168B - McVitie Weston number), by Tungsram Electric Lamp Works (Gt. Britain) Ltd.