Watch List notes:

Antoninus Pius (138-161), As, Rome, AD 140-144; AE (g 13,18; mm 28; h 6); ANTONINVS AVG - PIVS P P TR P COS IIII, laureate head r., Rv. FELICI - TAS AVG, Felicitas standing front, head l., holding caduceus and branch; in field, S - C. RIC 679; C 366.
Brownish partina, extremely fine.