Watch List notes:

Constantine I. A.D. 307/10-337. AE follis (20.7 mm, 3.38 g, 7 h). London mint, struck A.D. 322-323. IMP CONSTANTINVS P F AVG, laureate and cuirassed bust right / MARTI CONSERVATORI, Mars standing right, holding spear and shield; star in left field, PLN in exergue. RIC 251. VF.