Columbia subject headings:
Art and society--Germany--Hamburg--History.
Lichtwark, Alfred, 1852-1914--Influence.
Painting, German--Germany--Hamburg--19th century.
Painting, German--Germany--Hamburg--20th century.
Harvard subject headings:
Art and society--Germany--Hamburg--History.
Art and the middle class--Germany--Hamburg.
Art patronage--Germany--Hamburg.
Lichtwark, Alfred, 1852-1914--Influence.
Lichtwark, Alfred, 1852-1914.
Painting, German--19th century
Painting, German--20th century
Painting, German--Germany--Hamburg--19th century.
Painting, German--Germany--Hamburg--20th century.
Princeton subject headings:
Art and the middle class--Germany--Hamburg.
Art patronage--Germany--Hamburg.
Lichtwark, Alfred, 1852-1914--Influence.
Painting, German--19th century.
Painting, German--20th century.