Constantine IV, Pogonatus (668-685). AE Half Follis, Rome mint. Obv. Beardless bust facing, wearing crown and chlamys, and holding spear. Rev. XX between facing busts of Heraclius and Tiberius, each wearing crown and chlamys; above, cross; in exergue, ROM. D.O. 82-3; MIB 115; Sear 1234. AE. 2.84 g. 15.00 mm. R. Rare and superb example. Deep green patina. Good EF/EF. Ex Roma Numismatics July 2023, 214.