Byzantine, Leo III the "Isaurian" with Constantine V (717-741 AD) Constantinople
AE Follis (24.5 mm, 5.4 g)
Obv: LEOn S COnST, the busts of Leo, with short beard, and Constantine facing, both wearing chlamys and crown with cross and holding akakia.
Rev: Large M between XXX and NNN, above, cross, beneath, A. Sear 1516.