Columbia subject headings:
Harvard subject headings:
Jewelry--Catalogs
Jewelry--Germany--Cologne--Catalogs.
Kunstgewerbemuseum der Stadt Köln--Catalogs.
Princeton subject headings:
Catalogs.
Jewelry--Catalogs.
Jewelry--Germany (West)--Cologne--Catalogs.
Kunstgewerbemuseum der Stadt Köln--Catalogs.