Watch List notes:

Constantine I. AD 307/310-337. Æ Follis (22mm, 3.24 g, 6h). Adventus type. Londinium (London) mint. Struck circa AD 311-312. Radiate, helmeted, and cuirassed bust left, holding spear and shield / Constantine I riding left, hand raised, holding spear, on horse pawing seated captive to left; –|*//PLN. RIC VI 145 corr. (obv. legend); C&T 7.01.024. Dark brown patina. Good VF. Extremely rare.

From the Paul DiMarzio Collection. Ex Paul Munro-Walker Estate (Roma XIII, 23 March 2017), lot 1264.