McVitie Weston valve collection, MOV/GEC valve, type T.4B
- Made:
- circa 1919
MOV/GEC valve, type T.4B, double ended glass valve 1ft 2in length overall and 6.5 in diam with side tube for grid connector, one stem marked 3354, the other X, anode stamped 99, (RMW/J77 - McVitie Weston number), by M-O Valve Co. Limited; General Electric Company Limited, c. 1919.