Crispus as Caesar (317-326).     AE Follis, 322-323. Treveri mint.   Obv.    IVL CRISPVS NOB CAES. Laureate and cuirassed bust left, holding spear and shield.        Rev.   BEATA TRANQVILLITAS. Globe set on altar inscribed VO/TIS/XX; above, three stars; in exergue, STR.          2.58 g.   20.00 mm.          Good VF / About VF.