Columbia subject headings:
Portrait drawing, Italian--Exhibitions.
Portrait drawing, Italian--United States--Exhibitions.
Portrait drawing--Collectors and collecting--United States--Exhibitions.
Harvard subject headings:
Portrait drawing, Italian--Exhibitions.
Portrait drawing, Italian--United States--Exhibitions.
Portrait drawing--Collectors and collecting--United States--Exhibitions.
Princeton subject headings:
Portrait drawing, Italian--Exhibitions.
Portrait drawing, Italian--United States--Exhibitions.
Portrait drawing--Collectors and collections--United States--Exhibitions.