Nummus - Licinius I IMP LICINIVS P AVG, SECVRITAS AVGG, star left, PLN, Londinium

Licinius never set foot in Britain. These London issues bearing his name were struck as a political formality following the agreement at Carnuntum in November 308, where Diocletian came out of retirement to broker an awkward peace between competing claimants. The PLN mintmark places this firmly at the London mint during its final active years — the facility was closed by Constantine around 325, making the entire London output of Licinius's reign a narrow, historically terminal series.