Watch List notes:

Roman Imperial. Antoninus Pius (138-161 AD) Rome AR denarius (19,5 mm, 3,3 g)
Obv: ANTONINVS AVG-PIVS P P TR P XII - laureate head of Antoninus Pius right
Rev: COS-IIII, Aequitas (or Moneta) standing facing, head left, scales in right hand, cornucopia in left.
RIC III 177.