Rubens’ handiwork restored to brilliance

London’s National Gallery has cleaned and conserved one of their greatest works by Flemish Baroque master Peter Paul Rubens. View of Het Steen in the Early Morning was dingy and yellowed from discolored varnishes applied by restorers 75 years ago.  Look at it now: Rubens’ commissions were mostly portraits of aristocrats, altarpieces and large-scale historical, …