Crispus, as Caesar. 317-326 AD. AE Follis (3.13g, 21mm). Treveri mint. Struck 321 AD. Obv.: IVL CRISPVS NOB CAES, laureate and cuirassed bust to left, holding spear and shield. Rev.: BEATA TRANQVILLITAS, globe set on altar inscribed VOTIS XX in three lines; three stars above; STR in exergue. RIC 308. gVF.