Constantine I as Caesar AE follis, 27 mm. Trier mint, summer 307 AD.
Obverse: FL VAL CONSTANTINVS NOB C, laureate, cuirassed bust of right.
Reverse: MARTI PATRI PROPVGNATORI, helmeted Mars, clad in chlamys, advancing
right, carrying spear and shield, S?A in fields, PTR in exergue.
RIC 730.
Contributed by Yuri Kabanov, November, 2007.