Bronze follis, 21mm, 3.84gm, issued AD 310-312 Londinium mint.
Obv: CONSTANTINVS PF AVG, Bust of Constantine I, laureate, cuirassed, right.
Rev: ADVENTVS AVG (PLN in ex.), Emperor draped, cuirassed, riding left, raising right hand and holding up spear with left hand; horse treading seated captive to left.
References: Sear 15860, RIC 133.
Scarce.