BYZANTINE EMPIRE.Alexius III Angelus-Comnenus AD 1195-1203.AE.Trachy. Mint of CONSTANTINOPE ( 3.48g, 25.2mm, 6h )
Bust of Christ.
Reverse.Emperor and Saint Constantine ( left ).
Ref:Sear 2012.
Very fine.
Note this coin in flat, the normal issue is Scyphate ( cup shape ). The coin likely hammed in antiquity circ 13th cent AD to pass as a follis perhaps during the period of the crusades.