Constantine I
A.D. 307-308
Ӕ follis 25x26mm 6.4g
IMP CONSTANTINVS P F AVG; Laureate, draped and cuirassed bust right, seen from the rear.
MARTI PATRI CONSERVATORI; Mars, standing right, r. holding transverse spear, l. resting shield on ground. S-A across fields.
In ex. PTR
RIC VI Trier 774