Constantine IV, Pogonatus (668-685). AE Follis, Ravenna mint. D/ [DN COTINVS PP]. Bust three-quarter face to right, helmeted and cuirassed, and holding spear and shield. R/ Large M between facing standing figures of Heraclius and Tiberius; above, [ANNO]/XVI/II; beneath, Θ; in exergue, [RAV]. Cf. D.O 87-91; cf. Sear 1239; cf. Ranieri 727 ff. AE. g. 4.15 mm. 18.50 RR. Rare. Nice emerald green patina. VF.