Nummus - Constantinus I as Caesar MARTI PACIF, PLN, Londinium

In 307, Constantius I had been dead for less than a year, and his son Constantine was consolidating a claim to power that Galerius refused to recognize as more than Caesar — hence the titulature on this issue. The London mint, reactivated under Constantius in the 290s as part of Diocletian's monetary reforms, was operating squarely within the western sphere Constantine controlled after his father's death at Eboracum.

RIC VI 94 from Londinium is among the earlier London issues of Constantine's long reign, struck before the political situation resolved into outright civil war.