McVitie Weston valve collection, MOV/ GEC valve, type V.T. No 37
MOV/ GEC valve, type V.T. No 37, pinch marked 42 TPI, (RMW/E150B - McVitie Weston number), by M-O Valve Co. Limited; General Electric Company Limited.
MOV/ GEC valve, type V.T. No 37, pinch marked 42 TPI, (RMW/E150B - McVitie Weston number), by M-O Valve Co. Limited; General Electric Company Limited.