Watch List notes:

Commodus. A.D. 177-192. AR denarius (19.07 mm, 3.71 g, 6 h). Rome mint, A.D. 184. M COMMODVS ANTON AVG PIVS, laureate head right / P M TR P VIIII IMP VI COS IIII P P, Genius or Bonus Eventus standing left, sacrificing out of patera over altar and holding grain ears. RIC 76; RSC 435. VF. 

From the William B. Porter Collection.