Antoninus Pius, Rome mint, 157-158 AD.,
Æ Dupondius (21-23 mm / 11.22 g),
Obv.: [ANTONINVS AVG] - PIVS P P IMP II , radiate, draped (and cuirassed?) bust of Antoninus Pius right, seen from behind.
Rev.: [TR POT] XXI - COS IIII / S - C , Abundantia standing l. holding grain-ears left and rudder on prow at right; modius with grain-ears on ground at left.
RIC - (cf. 993) .
Thanks to Curtis Clay, who stated:
"The normal obv. type is indeed Head rad. r., BMC 2044, Strack 1140.
Strack 1140 also records a spec. in Paris with Bust rad., draped r., as on Arminius' coin. I noted just such a specimen, from the same obv. die as Arminius' coin but a different rev. die, in CGB Moneta XIII, 2002, 421."