Columbia subject headings:
Coinage--Europe--History--Congresses.
Europe--Commerce--History--Congresses.
Hanseatic League--Commerce--Congresses.
Money--Europe--History--Congresses.
Payment--Europe--History--Congresses.
Harvard subject headings:
Finance--Europe--History--Congresses.
Money--Europe--History--Congresses.
Princeton subject headings:
Finance--Europe--History--Congresses.
Money--Europe--History--Congresses.