Marcus Aurelius (161-180) AR Denarius (Silver, 3.13g, 18mm) Rome, 166.
Obv: M ANTONINVS AVG ARM PARTH MAX, Laureate head of Marcus Aurelius to right.
Rev: TR P XX IMP IIII COS III Victory standing facing, her head turned right, holding a palm frond in her right hand and a round shield inscribed VIC/PAR set on a palm tree.
Ref: RIC 163.