Columbia subject headings:
Ivories, Baroque--Austria--Exhibitions.
Ivories, Baroque--Germany--Exhibitions.
Winkler, Reiner--Art collections--Exhibitions.
Harvard subject headings:
Ivories--Europe--History--17th century--Exhibitions.
Ivories--Europe--History--18th century--Exhibitions.
Ivories--Private collections--Germany--Exhibitions.
Winkler, Reiner--Art collections--Exhibitions.
Princeton subject headings: