Columbia subject headings:
Beitz, Berthold--Art collections.
Bronzes, Ancient--Catalogs.
Bronzes, Iranian--Germany--Essen--Catalogs.
Hundhausen, Carl--Art collections.
Museum Folkwang Essen--Catalogs.
Harvard subject headings:
Beitz, Berthold--Art collections--Catalogs.
Bronzes, Iranian--Catalogs.
Bronzes--Private collections--Germany (West)--Essen--Catalogs.
Princeton subject headings: