CONSTANTINE II, as Caesar. 317-337 AD. Æ Follis (20mm, 4.2 g). Cyzicus mint. Struck 325-326 AD. CONSTANTINVS IVN NOB C, laureate, draped and cuirassed bust left / PROVIDEN-TIAE CAESS, camp-gate with no doors and two turrets, star above; SMKΔ.