Nummus - Constantinus II Radiate, FL CL CONSTANTINVS IVN N C, VICTORIAE LAETAE PRINC PERP, wreath in square, PLN, Londinium

Constantine II received the title Caesar in 317 AD at roughly eighteen months old, making him nominally a co-ruler before he could walk. The VICTORIAE LAETAE PRINC PERP type was introduced across multiple mints following the defeat of Licinius at the Battle of Cibalae in 316, effectively broadcasting Constantine I's victory through his son's coinage. The PLN mint mark places this firmly at the London mint, which was operating under increasingly reduced output during this decade and would be closed entirely by Constantine I around 325 AD — only a few years after this piece was struck.