Columbia subject headings:
Art, German--20th century--Exhibitions.
Art, German--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Private collections--Germany--Darmstadt--Exhibitions.
Frank, Bertha, 1892-1979--Art collections--Exhibitions.
Frank, Rudolf, 1889-1959--Art collections--Exhibitions.
Harvard subject headings:
Art, German--20th century--Exhibitions.
Art, German--Exhibitions.
Art, Modern--20th century--Exhibitions
Art--Private collections--Germany--Darmstadt--Exhibitions.
Frank, Bertha, 1892-1979--Art collections--Exhibitions.
Frank, Rudolf, 1889-1959--Art collections--Exhibitions.
Hessisches Landesmuseum (Darmstadt, Germany)--Exhibitions.
Princeton subject headings:
Art, German--20th century--Exhibitions.
Art, German--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Private collections--Germany (West)--Darmstadt--Exhibitions.
Frank, Bertha, 1892-1979--Art collections--Exhibitions.
Frank, Rudolf, 1889-1959--Art collections--Exhibitions.