Columbia subject headings:
Pottery, Medieval--Collectors and collecting--Italy--Umbria--Exhibitions.
Pottery, Medieval--Conservation and restoration--Italy--Umbria--Exhibitions.
Pottery, Medieval--Italy--Umbria--Exhibitions.
Harvard subject headings:
Imbert, Alessandro--Art collections--Exhibitions.
Morgan, J. Pierpont (John Pierpont), 1837-1913--Art collections--Exhibitions.
Pottery, Italian--Italy--Orvieto--Exhibitions.
Pottery, Medieval--Italy--Orvieto--Exhibitions.
Pottery--Collectors and collecting--History--20th century--Exhibitions.
Princeton subject headings:
Imbert, Alessandro--Art collections--Exhibitions.
Morgan, J. Pierpont (John Pierpont), 1837-1913--Art collections--Exhibitions.
Pottery, Italian--Italy--Orvieto--Exhibitions.
Pottery, Medieval--Italy--Orvieto--Exhibitions.
Pottery--Collectors and collecting--History--20th century--Exhibitions.