Watch List notes:

Marcus Aurelius. A.D. 161-180. AR denarius (18.77 mm, 3.35 g, 6 h). Rome mint, A.D. 169-170. M ANTONINVS AVG TR P XXIIII, Laureate head of Marcus Aurelius right / COS III, Diana standing half right, holding bow and arrow. RIC 212; RSC 130. Good VF. 

From the William Porter Collection.