Watch List notes:

BYZANTINE EMPIRE: Constans II, 641-668, AV solidus (4.35g), Constantinople, S-964, bust of the emperor with long beard at left, his beardless son right // cross pattée on 3 steps, Heraclius standing left & Tiberius right, officina E, CONOB without any additional symbols below, bold EF.

Estimate: 350-450 USD