Constantine V Copronymus with Leo IV (751-775). AE Follis. Syracuse mint, 751-775. Obv. Crowned half-length facing busts of Constantine V, bearded, and Leo IV, beardless, each wearing chlamys; cross above. Rev. Crowned facing bust of Leo III, wearing chlamys, holding cross potent. D.O. 19; Sear 1569. AE. 2.57 g. 18.00 mm. Dark green patina, with light brown spots. VF.