Columbia subject headings:
Rome--Army--Equipment.
Harvard subject headings:
Armor, Ancient--Rome--Congresses.
Defense industries--Rome--Congresses.
Military weapons--Rome--Congresses.
Rome--Military antiquities--Congresses.
Weapons, Ancient--Rome--Congresses.
Princeton subject headings:
Rome--Army--Equipment--Congresses.
Rome--Military antiquities--Congresses.