161-169 AD - LUCIUS VERUS AE sestertius - struck 162 AD

obv: IMP.CAES.L.AVREL.VERVS.AVG (laureated head right)
rev: CONCORD.AVGVSTOR.TRP.II (Verus and Aurelius standing with clasping hand), COS II in ex, S-C in field
ref: RIC III 1309 (M.Aurel) (C), C.36 (4frcs)
mint: Rome
23.03gms, 30mm

This coin is better in hand than the picture allow.
History: Never before had Rome been ruled jointly by two emperors, but their authority was not shared equally. Marcus clearly had more power than his younger brother, although officially his only additional title was "pontifex maximus," while Lucius was simply "pontifex".Joint rule was revived by Diocletian's establishment of the Tetrarchy in the late 3rd century.