J.M.W Turner’s The Lake of Lucerne from Brunnen (c. 1840s)—one of the finest watercolours by the artist left in private hands—was sold for £2 million by Sotheby’s today (4 July). The stunning Swiss landscape, painted by Britain’s favourite artist, fetched among the highest prices paid for a watercolour by the artist. It was sold in the Old Master & British Works on Paper sale, whose proceeds totalled more than £5.5 million. Created in the final...