Columbia subject headings:
De Unger, Edmund--Art collections--Exhibitions.
Decorative arts--Private collections--Exhibitions.
Enamel and enameling, Medieval--Exhibitions.
Small sculpture, Medieval--Exhibitions.
Harvard subject headings:
De Unger, Edmund--Art collections--Exhibitions.
Enamel and enameling, Medieval--Exhibitions.
Sculpture, Medieval--Exhibitions.
Princeton subject headings:
Enamel and enameling--Private collections--Catalogs.
Sculpture, Medieval--Private collections--Catalogs.