Watch List notes:

Crispus Caesar (317-326), Follis, Aquileia, AD 321; AE (g 2,55; mm 19; h 5); CRISPVS NOB CAES, laureate and cuirassed bust l., holding shield and horse by bridle, Rv. [CAESARVM NOSTR]O[RVM], around laurel wreath enclosing VOT / X; below, [°]AQ[P]°. RIC 98.
Very rare, traces of silvering, extremely fine / good very fine.