Silver denarius, 18mm, 2.93gm, issued AD 145-161 Rome mint.
Obv: ANTONINVS AVG PIVS PP, Laureate head right.
Rev: COS IIII, Concordia, draped, standing left, holding patera in extended right hand and vertical sceptre in left.
References: Sear 4070, RIC 129, RSC 226.