Columbia subject headings:
Decoration and ornament, Architectural--Italy--Marche.
Decoration and ornament, Architectural--Italy--Umbria.
Decoration and ornament, Medieval--Italy--Marche.
Decoration and ornament, Medieval--Italy--Umbria.
Harvard subject headings:
Decoration and ornament, Architectural--Italy--Marche.
Decoration and ornament, Architectural--Italy--Umbria.
Decoration and ornament, Medieval--Italy--Marche.
Decoration and ornament, Medieval--Italy--Umbria.
Ironwork--Italy--Marche.
Ironwork--Italy--Umbria.
Princeton subject headings: