Watch List notes:

Constantine I. A.D. 307/10-337. AE centenionalis (19.9 mm, 3.30 g, 2 h). Siscia mint, Struck A.D. 320. CONST-ANTINVS AVG, cuirassed bust of Constantine right wearing high-crested helmet / VIRTVS EXERCIT / VOT / XX, Vota dedication in two lines on banner of vexillum between two bound captives, seated back-to-back; S - F / (HL) (ligate) // HSIS (star). RIC VII 120. Near EF, slightly irregular flan, slightly off-center, significant silvering remains.