Watch List notes:

Antoninus Pius (138-161), Dupondius, Rome, AD 156-157; AE (g 11,44; mm 26; h 5); ANTONINVS AVG - PIVS P P IMP II, radiate head r., Rv. [TR POT] XX - COS IIII, Providentia standing l., pointing with r. hand at large globe and holding sceptre; in field, S - C. RIC 970; C 1012.
Green patina, good very fine.