Columbia subject headings:
Harvard subject headings:
Coins, Medieval--Exhibitions.
Crusades--Third, 1189-1192--Exhibitions.
Frederick I, Holy Roman Emperor, approximately 1123-1190--Numismatics--Exhibitions.
Princeton subject headings:
Coins, Medieval--Exhibitions.
Crusades--Third, 1189-1192--Exhibitions.
Frederick I, Holy Roman Emperor, approximately 1123-1190--Numismatics--Exhibitions.