CONSTANTINE I as Augustus. AE Follis of Ticinum. Struck c.A.D.312 - 313.
Obverse: IMP CONSTANTINVS P F AVG. Laureate and cuirassed bust of Constantine facing right.
Reverse: MARTI CONSERVATORI. Mars standing facing right, leaning on shield and holding vertical spear in his right hand; in left field, star; in exergue, T T.
RIC VII : 12 (r5)