Constantine I. AE follis. Siscia.

IMP CONSTANT-INVS AVG, high-crested helmeted, cuirassed
bust left, holding spear over shoulder and shield on left
arm.
VICTORIAE LAETAE PRINC PERP, two Victories standing facing 
one another holding shield inscribed VOT PR on altar, Altar decoration X with + in centre (Helv. type 7y).

Mintmark Gamma SIS.

RIC VII Siscia 56 var (altar decoration).
Rated R4.

With permission of Münzen & Medaillen Deutschland Auction 39, lot 249.