McVitie Weston valve collection, ETA (Electrical Trading Association) valve, type BY2010
ETA (Electrical Trading Association) valve, type BY2010, (RMW/E54 - McVitie Weston number), by Unknown maker.
ETA (Electrical Trading Association) valve, type BY2010, (RMW/E54 - McVitie Weston number), by Unknown maker.