Watch List notes:

Antoninus Pius (138-161), Sestertius, Rome, AD 140-144; AE (g 24,56; mm 34; h 6); ANTONINVS AVG PI - VS P P TR P COS III, laureate head r., Rv. GENI - O [S]ENATVS, the Genius of Senatus standing l., holding branch and sceptre; in field, S - C. RIC 605; C 400.
Dark patina, large flan, about extremely fine.