Watch List notes:

Leo IV the Khazar, with Constantine VI, Leo III, and Constantine V. 775-780. AV Solidus (20mm, 4.46 g, 6h). Constantinople mint. Struck 778-780. Constantine VI and Leo IV enthroned facing, each wearing crown and chlamys and holding akakia; cross above / Crowned facing busts of Leo III and Constantine V, each wearing loros; cross above, pellet between. DOC 2; Füeg 1.B.1 (Constantine VI); SB 1584. VF.