The Florentine artist was just 25, and justly proud enough to append his signature (the only surviving example), visible on the Madonna's sash . Since a religious fanatic attacked it with a hammer in 1972, the statue is protected by bullet-proof glass.
The statue is protected only by a security guard.
mnli hypothesis: The statue is protected only by a security guard. premise: The Florentine artist was just 25, and justly proud enough to append his signature (the only surviving example), visible on the Madonna's sash . Since a religious fanatic attacked it with a hammer in 1972, the statue is protected by bullet-proof glass.