Constantine V Copronymus, with Leo IV (741-775) AE Follis (Bronze, 1.25g, 17mm) Constantinople, 751-769(?).
Obv: Crowned and draped facing busts of Constantine V, wearing short beard, and Leo IV, beardless; cross above
Rev: Crowned facing half-length bust of Leo III, wearing short beard and loros and holding cross potent, set on ground line with pellet at each end; cross in right field; below ground line, large M; X and N flanking; A below.
Ref: DOC 11; Sear 1556.