Watch List notes:

Philip I. A.D. 244-249. AE sestertius (12.73 g). Rome mint, struck A.D. 248. IMP M IVL PHILIPPVS AVG, laureate, draped and cuirassed bust right / SAECVLARES AVGG, S-C, cippus inscribed COS/III in two lines. RIC 157a; Banti 24. NGC XF 4/5, 2/5, smoothing. 

Ludi Saeculares (Secular Games) issue, commemorating the 1000th anniversary of the founding Rome.