Watch List notes:

Constantine I (306-337), Nummus, London, AD 312-313; AE (g 3,45; mm 21; h 6); IMP CONSTANTINVS P F AVG, laureate and cuirassed bust r., Rv. MARTI CON - SERVATORI, Mars standing r., holding spear and shield; in l. field, *; in ex. PLN. RIC VI, 250.
Uncommon, dark patina, good very fine.