Columbia subject headings:
Portraits, Greek.
Portraits, Roman.
Sculpture, Greek.
Sculpture, Roman.
Harvard subject headings:
Portrait sculpture, Classical--Italy--Sicily--Catalogs.
Portraits, Greek--Italy--Sicily--Catalogs.
Portraits, Roman--Italy--Sicily--Catalogs.
Princeton subject headings:
Portraits, Greek.
Portraits, Roman.
Sculpture, Greek.
Sculpture, Roman.