Columbia subject headings:
Goldwork--Europe--Exhibitions.
Silverwork--Europe--Exhibitions.
Harvard subject headings:
Art metal-work--Europe--History--Exhibitions.
Goldwork--Europe--History--Congresses.
Hallmarks--Europe--History--Exhibitions.
Silverwork--Europe--History--Congresses.
Princeton subject headings:
Art metal-work--Europe--Exhibitions.
Goldwork--Europe--Exhibitions.
Hallmarks--Europe--Exhibitions.