Watch List notes:

Antoninus Pius (138-161), Denarius, Rome, AD 138; AR (g 3,45; mm 17; h 6); IMP T AEL CAES HAD - RI ANTO[NINVS], bare head r., Rv. AVG PIVS P M T - R P COS DES II, Diana standing r., holding arrow and bow. RIC 7; C 68.
Lustrous, extremely fine.