On Friday, February 21, 2003, at 6 p.m. Inside Palazzo Sertoli Ballroom, in Piazza Quadrivio 8, in Sondrio Volume presentation NOBLE RESIDENCES IN VALTELLINA AND VALCHIAVENNA Salis and Sertoli families' residences Guest participants Architect Sara Beatriz Gavazzi, editor Professor Gian Piero Calza, from Milan Polytechnic, faculty of architecture Historian Diego Zoia Cocktail party