660-661 AD., Constans II on Heraclius, Constantinopolis mint, Æ Decanummium overstruck on half Follis, Sear BC 1021 on 815.
Constans II on Heraclius, Constantinopolis mint, officina 3, dated regnal year 17 of Heraclius = 626-627 AD., and Constantinopolis mint, officina 1, year 20 of Constans II = 660-661 AD.,
Æ Decanummium of Constans II overstruck on half Follis of Heraclius, (16-20 mm / 2,60 g),
Obv.: no legend, bust of Constans II facing, [with long beard], wearng crown and chlamys, [K to r.]; - overstruck on a reverse of Heraclius: large K (= 20 Nummi), cross above, A/N/[N/O] to left, regnal year X / GI (= 17) to r., officina letter A beneath.
Rev.: large I (value mark = 10 Nummi) between numerals representing the regnal year 20: X / X and officina letter Γ (= 3), overstruck on Heraclius in military dress and Hercaclius Constantine stg, facing, [cross between heads ?].
Sear BC 1021 ; on Sear BC 815 .