Crispus, Caesar. 316-326 AD. AE Follis (3.27g, 20mm). Rome mint. Struck 324-5 AD. Obv.: FL IVL CRISPVS NOB CAES, laureate, draped and cuirassed bust left. Rev.: PROVIDENTIAE CAESS, camp-gate with no doors and two turrets, star above; RS in exergue. RIC 266; LRBC 505. VF.