Antoninus Pius and Marcus Aurelius, AR denarius. AD 139. 18.6 mm, 2.91 g. Rome. 

ANTONINVS AVG PIVS PP, bare head right.
AVRELIVS CAES AVG PII F COS DES, bare head right. 

RIC 411a; RSC 2; BMCRE 125.

With permission of Eidmar auction 3, lot 441, (on biddr.com), March 2024.