Antoninus Pius AR Denarius
Rome Mint 153-154AD
Size:  17.5mm  Weight:  3.22 grams
Obverse: ANTONINVS AVG PIVS P P TR P XVII, laureate head right
Reverse: COS IIII, Annona standing half left, stalks of grain in right, left hand rests on modius overflowing with grain set on prow