Watch List notes:

BYZANTINE EMPIRE: Constans II, 641-668, AV solidus (4.39g), Constantinople, S-964, facing busts of Constans & Constantine IV, with Constans wearing plumed helmet // cross potent on three steps between crowned busts of the former emperors Heraclius and Tiberius, officina E, EF.

Estimate: 350-450 USD