Watch List notes:

Constantine II. As Caesar, A.D. 317-337. Æ 3 (18.8 mm, 2.92 g, 11 h). Ticinum, A.D. 321. CONSTANTINVS IVN NOB C, laureate head right / CAESARVM NOSTRORVM, legend around VOT/·/X; RT in exe. RIC 243. aVF.