Watch List notes:

Constantine I. A.D. 307/10-337. AE follis (24.1 mm, 4.24 g, 7 h). London mint, AD 310-312. Scarce. CONSTANTINVS PF AVG, laureate and cuirassed bust right / ADVENTVS AVG, emperor on horseback left, right hand raised, left holding spear, horse treading upon seated captive to left, star to right, PLN in exergue. RIC 133. aVF.