Constantine V Copronymus, with Leo IV and Leo III.

Constantinople, ca. 757-775 AD. AU solidus, 4.32 gr., 20.7 mm. 

Obv: COҺSTAҺTIҺOS S LЄOҺ O ҺЄOS; crowned facing busts of Constantine V and Leo IV, each wearing chlamys; above: cross, between: ·.

Rev: C LЄOҺ P A MЧL; crowned bust of Leo III facing, with loros and cross potent on base.

Ref: DOC 2d.3; Sear 1551.