Columbia subject headings:
Harvard subject headings:
Numismatics--Austria--Congresses.
Numismatics--Balkan Peninsula--Congresses.
Numismatics--Europe, Eastern--Congresses.
Religious medals--Austria--History--To 1500--Congresses.
Princeton subject headings:
Numismatics--Austria--Congresses.
Numismatics--Balkan Peninsula--Congresses.
Numismatics--Europe, Eastern--Congresses.
Religious medals--Austria--History--To 1500--Congresses.