Columbia subject headings:
Art patronage--Germany--History--19th century.
Art patronage--Germany--History--20th century.
Art--Private collections--Germany.
Velde, Henry van de, 1863-1957.
Wolff, Alfred, 1866-1959--Art collections--Catalogs.
Wolff, Alfred, 1866-1959.
Harvard subject headings:
Art patronage--Germany--History--19th century.
Art patronage--Germany--History--20th century.
Art--Private collections--Germany.
Velde, Henry van de, 1863-1957.
Wolff, Alfred, 1866-1959--Art collections--Catalogs.
Wolff, Alfred, 1866-1959.
Princeton subject headings:
Art patronage--Germany--History--19th century.
Art patronage--Germany--History--20th century.
Art--Private collections--Germany.
Catalogs.
Velde, Henry van de, 1863-1957.
Wolff, Alfred, 1866-1959--Art collections--Catalogs.
Wolff, Alfred, 1866-1959.