Constantine V Copronymus with Leo IV (741-775). AV Solidus, Syracuse mint. Obv. Facing busts of Constantine V and Leo IV, each wearing crown and chlamys; in field above, cross. Rev. Facing bust of Leo III wearing crown and loros and holding cross potent. D.O. 15; Sear 1565. 3.49 g. 19.25 mm. R. Rare and superb example. About EF.