Constantine II, AE follis, London. AD 318. 

FL CL CONSTANTINVS IVN N C, radiate, draped, and cuirassed bust left, seen from the back.
VICTORIAE LAETAE PRINC PERP, two Victories standing, holding 
between them a shield inscribed VOT-PR over altar decorated 
with a star in wreath (Helv. 3c). 

Mintmark PLN. 

RIC VII London 181.
Rated R2.