Watch List notes:

Constans. AD 337-350. Æ (23mm, 4.97 g, 6h). Thessalonica mint, 4th officina. Struck AD 348-350. Pearl-diademed, draped and cuirassed bust right / Emperor in military dress, standing left on galley, holding phoenix on globe and standard with Chi-Rho on banner, Victory seated right at stern; TESΔ below. RIC VIII 109. Grey tone with some residual silvering, light porosity. Good VF.