Antoninus Pius and Marcus Aurelius AR denarius. 17 mm, 3.16 g. Rome, AD 138-161. 

ANTONINVS AVG PI VS P P TR P COS III, bare head of Antoninus Pius right.
AVRELIVS CAES AVG PII F COS, bare-headed and draped bust of Marcus Aurelius right. 

RIC III 415c; BMCRE 148; RSC 21a.

With permission of Roma Numismatics Ltd - E-Sale 76, Lot 1009, Nov 2020