A 1707 Stradivari cello that was owned by Bernard Greenhouse for half a century has been sold by sealed bid for a record price. According to the New York Times, the 'Countess of Stanlein' cello was bought by a Montreal arts patron for in excess of $6m. Christopher Reuning, the Boston-based dealer who handled the sale, said the new owner will loan the cello to an 18-year-old Canadian player, Stéphane Tétreault, who is studying at the University of Montreal with Yuli Turovsky.