Watch List notes:

Constantine I. AD 307/310-337. Æ Follis (22mm, 3.66 g, 6h). Adventus Type. Londinium (London) mint. Struck circa AD 311-312. Laureate, helmeted, and cuirassed bust left, holding spear forward in right hand, shield on left arm / Constantine I riding left, right hand raised, holding spear in left hand, on horse pawing seated captive to left; –|*//PLN. RIC VI 136 corr. (bust left, not right); C&T 7.01.007 (this coin cited and illustrated). Green patina. Near VF. Rare.

From the Paul DiMarzio Collection, purchased from Lee Toone (Hookmoor Ancient Coins FPL 1), 12 February 2016. Ex CT Collections, purchased from Clive Eyre, October 2010 for £70.