here's a workshop not in RIC, though I have had several of these.
Constantine I
A.D. 318
18x19mm 2.8g
IMP CONSTAN-TINVS AVG; high crested helmet, cuir., spear across right shoulder.
VICTORIAE LAETAE PRINC PERP; two Victories stg., facing one another, together holding shield inscribed VOT PR on altar.
in ex. ESIS✶
RIC VII Siscia 49