I just got this one and thought it was neat. The shield is decorated with what looks like a bunch of the letter C's with a dot inside them. I wonder if it represents something or more likely just some artistic expression on the part of the engraver. It is from officina B which is often more decorative- the helmet with a Chi-Rho and shields with horseman all come only from this workshop.
Constantine I
A.D. 319
19mm 2.5gm
IMP CONSTANT-INVS AVG, high crested helmet, cuir., spear across r. shoulder, shield on left arm
VICTORIAE LAETAE PRINC PERP, two Victories stg., facing one another, together holding shield inscribed VOT PR on altar.
In ex. BSIS dot
RIC VII Siscia 61
