Watch List notes:

Severus Alexander (222-235), Sestertius, Rome, AD 231-235; AE (g 16,68; mm 29; h 12); IMP ALEXANDER PIVS AVG, laureate, draped and cuirassed bust r., Rv. MARS - VLTOR, Mars advancing r., holding spear and shield; in field, S - C. RIC 635; C 169.
Green patina, about extremely fine.