Watch List notes:

Constantius II. A.D. 337-361. Æ centenionalis (22.5 mm, 5.15 g, 1 h). Cyzicus mint, Struck A.D. 351-354. D N CONSTANTIVS P F AVG, pearl-diademed, draped and cuirassed bust right / FEL TEMP REPARATIO, soldier spearing fallen horseman; Γ in left field, ·SMKE in exergue (or similar). cf. RIC 95; cf. LRBC 2488. Fine, pitted. 

An interesting late Roman protocontorniate.