Columbia subject headings:
Painting, Italian--17th century--Catalogs.
Painting, Italian--18th century--Catalogs.
Painting, Italian--Catalogs.
Harvard subject headings:
Guercino, 1591-1666--Exhibitions.
Mahon, Denis--Art collections--Exhibitions.
Painting, Baroque--Italy--Exhibitions.
Painting, Italian--Exhibitions
Painting, Modern--17th-18th centuries--Italy--Exhibitions.
Painting--Private collections--England--Exhibitions.
Princeton subject headings:
Mahon, Denis--Art collections--Exhibitions.
Painting, Baroque--Italy--Exhibitions.
Painting, Italian--17th century--Exhibitions.
Painting--Private collections--England--London--Exhibitions.