LEO IV The KHAZAR with CONSTANTINE VI, 775-780 AD. AE, Follis. 4.31 g. 23.21 mm. Constantinople.
Obv: Frontal busts of Constantine VI and Leo IV each wearing chlamys and crown with cross. Cross between their heads.
Rev: Frontal busts of Leo III and Constantine V each wearing loros, cross between their heads. B in left field and A in right field; in exergue, M over A, X in left field and N in right field.
Ref: Sear 1586.