Constantine V, Copronymus (741-775). AV Semissis, Syracuse. Obv. [ ]ST[ ] Bust of Constantine facing, wearing crown and chlamys, holding cross potent on globus and akakia. Rev. [ ] Bust of Leo III facing, with short beard, wearing crown and chlamys, holding globus cruciger and akakia. D.O. 16; Sear 1566. 1.41 g. 13.50 mm. RR. Very rare. Significantly clipped and light, otherwise. about EF.