Watch List notes:

Crispus (317-326) - BI Centenionalis (Siscia AD 320-21, 3.54 g) – IVL CRISPVS NOB C, laureate bust right / CAESARVM NOSTRORVM around wreath enclosing VOT / V in two lines, mint mark SIS preceded by officina mark A and followed by star (RIC vii, p 444) – EF