Columbia subject headings:
Harvard subject headings:
Emperors--Rome--Portraits--Catalogs.
Emperors--Rome--Portraits--Exhibitions.
Portrait sculpture, Roman--Germany--Catalogs.
Portrait sculpture, Roman--Germany--Exhibitions.
Princeton subject headings:
Catalogs.
Emperors--Rome--Portraits--Catalogs.
Portrait sculpture, Roman--Germany--Catalogs.
Portraits.