Constantine I AE follis, Arles. 

CONSTANTINVS MAX AVG, laurel and rosette-diademed, draped and cuirassed bust right.
GLORIA EXERCITVS, two soldiers holding spears and shields with one standard between them. X on banner.

Mintmark SCONST.

RIC VII Arles 402.
Rated R5.

Contributed by Ricard DeMarco of Carpe Diem Numismatics, Nov. 2018