Watch List notes:

Antoninus Pius (138-161). AR Denarius, 145-161 AD. D/ ANTONINVS AVG PIVS PP. Laureate head right. R/ COS IIII. Clasped hands, holding caduceus and corn-ears. RIC 136; C. 345. AR. g. 2.97 mm. 18.50 Sound metal. Of fine style and virtually as struck. About FDC.