McVitie Weston valve collection, GEC/USA valve, type GL343A
GEC/USA valve, type GL343A, marked 53Y8.5, (RMW/Y726 - McVitie Weston number), by General Electric Company Limited.
GEC/USA valve, type GL343A, marked 53Y8.5, (RMW/Y726 - McVitie Weston number), by General Electric Company Limited.