Watch List notes:

Antoninus Pius (138-161), Denarius, Rome, AD 148-149; AR (g 2,71; mm 19; h 12); ANTONINVS AVG - PIVS P P TR P XII, laureate head r., Rv. COS - IIII, Annona standing l., holding anchor and corn ears on modius. RIC 175; C 284.
Dark patina, extremely fine - good extremely fine.