Watch List notes:

Antoninus Pius. A.D. 138-161. Æ sestertius (32 mm, 22.78 g, 6 h). Rome, A.D. 151/2. IMP CAES T AEL HADR ANT-ONINVS AVG PIVS P P, laureate head of Antoninus Pius right / ANNONA AVG in exergue, TR POT XV COS IIII around, S C across field, Annona seated left, holding grain ears and cornucopiae; modius of grain at feet. RIC 891: BMC 1891. Brown surfaces, porosity. Very fine.