Reliquiary cross finely worked in twisted filigree of gilded silver
(typical medieval goldsmith technique), coral and colored glass paste,
containing an alleged relic of the Holy Cross, in turn bearing representations of the
"Baptism of Christ" and "Crucifixion".
The work, accompanied by a coat of arms belonging to the Chigi - Zondadari family
of Siena, was built by the Greek monks who lived and worked on Mount Athos
already in the 15th century.
