Marcus Aurelius (161-180), denar (Silver, 2.99 g, 18.1 mm), Rome.
Obv: [M] ANTONINVS AVG ARM - PARTH MAX, laureate head of Marcus Aurelius.
Rev: TR P XXII IMP IIII COS III, Providentia standing left, holding wand over globe in right hand, and sceptre in left.
Ref: RIC 170; C. 881