311RK2Z) Roman Imperial, Crispus as Caesar, AE Follis, (20.5 mm, 3.02 grms) Trier mint, Obverse: IV-L CRISPVS NOB CAES, Laureate, cuirassed, holding spear and shield, bust left. Reverse: BEATA TRANQVILLITAS, Altar inscribed VOT-IS XX, surmounted by globe, three stars above; Mintmark: PTR, Reference: RIC VII Trier 321, Sear 16729; aXF.