Antoninus Pius, AV aureus, 7.2 g. Rome Mint, struck 148-149 AD, 

ANTONINVS AVG PIVS P P TR P XII Laureate, draped bust right, seen from the back.
COS IIII Aequitas left, holding scales and cornucopia. 

RIC 177 var (bust type); BMC 651 note; Calico 1505 (this coin).

With permission of Baldwins auction Summer 2014, lot AR062.