Watch List notes:

Constantine I. A.D. 307/10-337. Æ follis (20 mm, 2.92 g, 12 h). Thessalonica mint, Struck A.D. 316/7. Rare legend. IMP CONSTANTINVS P F INV AVG, laureate head right / IOVI CONS-ERVATORI, Jupiter standing left, holding Victory on globe and scepter; at feet to left, eagle standing left, head right, holding wreath in beak; ·TS·Δ·. RIC 4 (r4). EF, dark brown patina.