THE BERETTA SET OF FOUR: Fabbrica d'Armi Pietro Beretta S.p.A., the world's oldest gunmaking and industrial firm, has been producing firearms in northern Italy since the days of Leonardo DaVinci and Christopher Colombus. Evidence suggests that Bartolomeo Beretta, a master barrel maker, operated an iron forge in the Val Trompia Valley as early as 1500. These spectacular group of double rifles are a result of a unique collaboration between Ugo Beretta and fellow hunter Robert Jepson.