Watch List notes:

Marcus Aurelius (161-180). AR Denarius, 171-172 AD. D/ M ANTONINVS AVG TR P XXVI. Laureate head right. R/ IMP VI COS III. Roma seated left, holding Victory and spear; behind, shield decorated with Medusa's head. RIC 259. C. 280. AR. g. 3.10 mm. 20.00 Broad flan. A very attractive example, prettily toned. About EF/Good VF.