Columbia subject headings:
Harvard subject headings:
Coins, Roman--Germany--Cologne.
Cologne (Germany)--Antiquities, Roman.
Mints--Germany--Cologne.
Numismatics, Roman--Germany--Cologne.
Romans--Germany--Cologne.
Princeton subject headings:
Coins, Roman--Germany--Cologne.
Cologne (Germany)--Antiquities, Roman.
Mints--Germany--Cologne.
Numismatics--Germany--Cologne.