Columbia subject headings:
Beckmann, Max, 1884-1950--Exhibitions.
Drawing, German--Exhibitions.
Engraving, German--Exhibitions.
Hamburger Kunsthalle--Exhibitions.
Hegewisch, Klaus--Art collections--Exhibitions.
Harvard subject headings:
Princeton subject headings:
Art--Private collections--Germany--Exhibitions.
Beckmann, Max, 1884-1950--Exhibitions.
Hegewisch, Erika--Art collections--Exhibitions.
Hegewisch, Klaus--Art collections--Exhibitions.