BYZANTINE EMPIRE, CONSTANTINOPLE Constans II (641-668), Solidus. Or. Av. Facing crowned busts of Constans II and Constantine IV, wearing chlamydia; cross in the middle. Rv. Altar with potent cross on three steps, with Heraclius on the left Heraclius to the left and Tiberius to the right, CONOB workshop mark. PB: 4,21 gr Sear Byzantine 964 TTB Formerly contained in a seal (broken by us) and a C.O.F.O.P certificate of Mr F. Massot