Massimo Osanna, head of archaeology at Basilica University, said that the team working at Torre Satriano near Potenza in what was once Magna Graecia had unearthed a sloping roof with red and black decorations, with "masculine" and "feminine" components inscribed with detailed directions on how they slotted together. Professor Christopher Smith, director of the British School at Rome, said that the discovery was "the clearest example yet found of mason's marks of the time. It looks as if someone was instructing others how to mass-produce components and put them together in this way"" he told The Times. Professor Osanna suggested...