Watch List notes:

Antoninus Pius (138-161). AR Denarius(?). Obv. ANTONINVS AVG PIVS PP. Laureate head left. Rev. TR P COS II. Emblems of the pontificate: secespita, aspergillum, capis, lituus, and simpulum. Cf. RIC 46. AR. g. 9.68 mm. 17.50 RRR. 5.5 mm thickness. Good VF. Struck on an enigmatic overweight flan. Apparently unpublished.