Watch List notes:

Constantine II, as caesar (Constantine I, 306-337), Nummus, Siscia, AD 326-327; AE (g 2,42; mm 19; h 12); CONSTANTINVS IVN NOB C, laureate head r., Rv. PROVIDEN - TIAE CAESS, camp gate, two turrets, star above; in ex. °εSIS°. RIC 202.
Dark patina. Good very fine.