“Only masterpieces” in the ‘motto’ which guides Domenico and Tomaso Piva in choosing and appraising art and antique works for their collections. They are few among antiquarians who didn’t surrender to hightened specialization and trive to conduct a polispecialization which goes from old master paintings and sculpture to the historical and artistic context of these works. They look indeed with passion to Venetian and Lombard furniture, to ceramics, to scientific instruments and to works of art.