Watch List notes:

Commodus. A.D. 177-192. AR denarius (18.9 mm, 3.70 g, 12 h). Rome mint, struck A.D. 184-185. COMM ANT AVG P BRIT, laureate head right / P M TR P X IMP VII COS IIII P P, ROM, Roma seated on cuirass left, holding Victory and cornucopia; arms on ground below. RIC 112; RSC 661; BMCRE 163. Toned aVF. 

From the Porter Collection.