McVitie Weston valve collection, Ediswan valve, type 5E.415
Ediswan valve, type 5E.415, pinch marked 5E415, (RMW/Y33 - McVitie Weston number), by Royal Ediswan.
Ediswan valve, type 5E.415, pinch marked 5E415, (RMW/Y33 - McVitie Weston number), by Royal Ediswan.