Leo IV the Khazar, with Constantine VI, Leo III, and Constantine V (775-780 AD). Constantinople mint.
AE Follis (26,3mm 4,6g)
Obv: Crowned facing busts of Leo IV and Constantine VI, each wearing chlamys; cross in field above
Rev: Crowned facing busts of Leo III and Constantine V each wearing loros, set on horizontal bar; B A across field; below, M above A, flanked by X and N.
DOC 4; SB 1586