Constantine II. As Caesar, A.D. 317-337. Æ follis (18mm, 2.5 g). Heraclea, A.D. 326. CONSTANTINVS IVN NOB C, laureate, draped and cuirassed bust of Constantine II right / PROVIDEN-TIAE CAESS, camp-gate surmounted by two turrets; above, star; SMHΓ