from a stylistic viewpoint is datable to the ninth century. Pope
Leo IV had it placed on top of the bell tower of the old Constantinian
Basilica. Some have wanted to see a reference to St Peter's denial
in this interesting example of medieval toreutics, but this seems
rather doubtful. In medievla tradition, in fact, roosters on the
bell towers of most other churches stood both as a symbol of vigilance
and to announce the break of day after the darkness of the night.
few of the many items on display in the Treasury Museum