Antoninus Pius AE As, 25-26mm; 11.58g. AD 145-161. 

ANTONINVS AVG PIVS P P TR P COS IIII, laureate head right. 
S-C across fields, Minerva, helmeted, draped, wearing cloak 
with aegis, walking right, brandishing javelin, round 
shield on left arm

BMCRE 1760; Cohen 746; RIC 826.

With permission of cngcoin.com, the AK Collection.