Columbia subject headings:
Harvard subject headings:
Coinage--Gaul--History--Congresses.
Coinage--Great Britain--History--Congresses.
Coins, Celtic--France--Congresses.
Coins, Celtic--Great Britain--Congresses.
Gaul--Antiquities, Celtic--Congresses.
Great Britain--Antiquities, Celtic--Congresses.
Princeton subject headings:
Coins, Celtic--France--Congresses.
Coins, Celtic--Great Britain--Congresses.