Watch List notes:

Constantine I. AD 307/310-337. Æ Follis (20mm, 2.79 g, 12h). Thessalonica mint, 1st officina. Struck AD 326-328. Laureate head right / Camp gate with two turrets, no doors; star above; –|•//SMTSA. RIC VII 153. Partial silvering toned dark gray, some brown patina. EF.