Watch List notes:

Crispus, as Caesar (Costantinus I, 306-337), Nummus, Rome, AD 318-319; AE (g 3,30; mm 19; h 6); CRISPVS NOB CAES, laureate and cuirassed bust l., holding spear and shield, Rv. ROMAE A - ETERNAE, Roma seated r., shield in lap inscribed X / V; in field, P - R; in ex. RP. RIC VII, 152.
Very rare, good very fine.