Watch List notes:

Antoninus Pius (138-161). AE Sestertius, 140-144 AD. Obv. ANTONINVS AVG PIVS PP TRP COS III. Rev. [REX ARMEN]IIS DATVS SC. Antoninus standing left, placing tiara on head of king of Armenia. RIC 619. C. 686. AE. g. 33.78 mm. 32.00 R. Rare and historically important. Brown patina. A few corrosions, otherwise VF.