We went this evening to an exhibition held on the top floor of the corporate headquarters of Clifford Chance, not the most accessible of gallery spaces at the tail end of Canary Wharf, but with an unusually thoughtful and serious exhibition of prints, watercolours and drawings by a generation of painters, most of whom were at the Slade, post School of London, who are now connected as ‘Gli Amici Pittori di Londra’ of Lino Mannocci, one of the co-organisers of the exhibition.