Watch List notes:

Antoninus Pius. A.D. 138-161. AE as (26.50 mm, 10.26 g, 12 h). Struck A.D. 149. ANTONINVS AVG PIVS P P TR P XII, Laureate head of Antoninus Pius right / MVNIFICENTIA AVG COS IIII, Munificentia standing left, holding wreath and scepter; reclining lion at feet to left. RIC 861. aVF, some roughness. Scarce. 

Commemorates the 900th Anniversary of the Roman Games