Nummus - Constantinus I GENIO POP ROM, PLN, Londinium

London's mint — Londinium — was reactivated around 296 AD by Constantius I after the reconquest of Britain from the usurper Allectus, and by 307 it was operating squarely in the middle of the Tetrarchic succession crisis. Constantine had just been proclaimed Augustus by his troops at York following his father's death, a title not yet recognized by the other tetrarchs. The PLN mintmark places this piece among the early London output under Constantine's contested authority, struck while the legitimacy of the issuing ruler was itself an open political question.