Watch List notes:

Constantine I (306-337), Nummus, Constantinople, AD 327-328; BI (g 2,79; mm 19; h 12); CONSTANTI - NVS MAX AVG, diademed head r., Rv. GLORIA RO - MANORVM, Roma, helmeted, seated l. on shield, holding sceptre and Victory on globe; on r., Z; in ex. CONS. RIC 23.
Original silvering, good extremely fine.