Columbia subject headings:
Coins, Medieval--Portugal--Congresses.
Coins, Medieval--Spain--Congresses.
Coins, Portuguese--Congresses.
Coins, Spanish--Congresses.
Harvard subject headings:
Coins, Medieval--Portugal--Congresses.
Coins, Medieval--Spain--Congresses.
Coins, Portuguese--Congresses.
Coins, Spanish--Congresses.
Princeton subject headings:
Coins, Medieval--Portugal--Congresses.
Coins, Medieval--Spain--Congresses.
Coins, Portuguese--Congresses.
Coins, Spanish--Congresses.