Watch List notes:

Constantine II. As Caesar, A.D. 317-337. BI centenionalis (19.3 mm, 3.72 g, 12 h). Thessalonica mint, Struck A.D. 325-326. CONSTANTINVS IVN NOB C, laureate, draped and cuirassed bust of Constantine II left / PROVIDEN-TIAE CAESS, star above two-turreted gate, six layers, no door / SMTSΔ. RIC VII 157; LRBC 815. EF, nearly fully silvered, virtually "as struck".