McVitie Weston valve collection, MOV/GEC valve, type T30
MOV/GEC valve, type T30, marked 92, stem marked 585, (RMW/J80 - McVitie Weston number), by M-O Valve Co. Limited; General Electric Company Limited.
MOV/GEC valve, type T30, marked 92, stem marked 585, (RMW/J80 - McVitie Weston number), by M-O Valve Co. Limited; General Electric Company Limited.