Watch List notes:

Antoninus Pius, 138-161. Sestertius (Orichalcum, 31 mm, 27.12 g, 5 h), Rome, 139. ANTONINVS AVG PIVS P P Laureate head of Antoninus Pius to right. Rev. COS II / S C / ASIA Asia, towered, standing left, holding crown in her right hand and anchor with left. BMC 1182. Cohen 64. RIC 579. Green patina. Porous, otherwise, very fine.