Columbia subject headings:
Painting, Italian--Appreciation--Europe--History--19th century.
Painting, Italian--Appreciation--Germany--Berlin--History--19th century.
Painting--Collectors and collecting--Germany--Berlin--History--19th century.
Painting--Economic aspects--Europe--History--19th century.
Painting--Economic aspects--Germany--Berlin--History--19th century.
Harvard subject headings:
Painting, Italian--Appreciation--Europe--History--19th century.
Painting, Italian--Appreciation--Germany--Berlin--History--19th century.
Painting--Collectors and collecting--Germany--Berlin--History--19th century.
Painting--Economic aspects--Europe--History--19th century.
Painting--Economic aspects--Germany--Berlin--History--19th century.
Princeton subject headings:
Painting, Italian--Appreciation--Europe--History--19th century.
Painting, Italian--Appreciation--Germany--Berlin--History--19th century.
Painting--Collectors and collecting--Germany--Berlin--History--19th century.
Painting--Economic aspects--Europe--History--19th century.
Painting--Economic aspects--Germany--Berlin--History--19th century.