McVitie Weston valve collection, MOV/GEC valve, type N.T.9X
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MOV/GEC valve, type N.T.9X, serial No
Science Museum Group
© The Board of Trustees of the Science Musuem
MOV/GEC valve, type N.T.9X, serial No. 18C, pinch marked 28, stem marked NT9X, (RMW/J48B - McVitie Weston number), by M-O Valve Co. Limited; General Electric Company Limited.
