Antoninus Pius, with Marcus Aurelius as Caesar. AD 138-161. AR Denarius (18mm, 2.66 g, 1h). Rome mint. Struck AD 140-144. ANTONINVS AVG PI VS PP TR P COS III, laureate head of Antoninus Pius right / AVERLIVS CAESAR AVG PII F COS , bare head of Marcus Aurelius right. RIC II 417a; BMCRE 155: RSC 15. VF.
