AE Dupondius, 26 mm, 13.57 g, Rome mint, CE 146
BMC 1741, Cohen 752, RIC 807 (citations with thanks to Curtis Clay who states that this coin is scarce)
O: ANTONINVS AVG PIVS PP TRP COS IIII, radiate bust r.
R: Mars advancing right with spear in right hand and trophy in left. SC