Columbia subject headings:
Coins, Roman.
Emperors--Rome--Portraits.
Empresses--Rome--Portraits.
Portrait sculpture, Roman.
Harvard subject headings:
Emperors--Rome--Family--Portraits
Emperors--Rome--Portraits
Portrait sculpture in numismatics--Rome.
Portrait sculpture, Roman.
Rome--History--Constantines, 306-363.
Rome--History--Diocletian, 284-305
Princeton subject headings:
Emperors--Rome--Portraits.
Empresses--Rome--Portraits.
Portrait sculpture, Roman.
Portraits.