Watch List notes:

Constantine II. As Caesar, AD 316-337. Æ Follis (18mm, 6h). Decennalia issue. Treveri (Trier) mint, 2nd officina. Struck AD 323-324. Laureate head right / VOT/ X within wreath; STR (crescent). RIC VII 441. In NGC encapsulation 382235-029, graded MS.