photo of Roma Numismatics
Constantine I. AE Follis. 310-313 AD.
IMP CONSTANTINVS PF AVG, laureate, cuirassed bust right
MARTI PATRI PROPVGNATORI, Mars, helmeted, advancing
right, holding transverse spear, shield on left arm.
S-A across fields, PTR in ex.
RIC VI Trier 776. Scarce.
With permission of Roma Numismatics, August, 2009