McVitie Weston valve collection, Ediswan valve, type AT40
Ediswan valve, type AT40, serial No. 14045, pinch marked K14, (RMW/J90 - McVitie Weston number), by Royal Ediswan.
Ediswan valve, type AT40, serial No. 14045, pinch marked K14, (RMW/J90 - McVitie Weston number), by Royal Ediswan.