This mintmark is unlisted with the short obverse legend. It should follow RIC 61.
Constantine I
A.D. 319
20mm 3.2gm
CONSTANTI-NVS 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 dot
RIC VII Siscia --
