Byzantine Empire / Islamic Coins - Lot of 4 coins (Follis, 2 1/2 Folles, Tetarteron) 1 x Justin II and Sophia (565-578) Half Follis Obverse: DN IVSTINVS PP AVG Justin and Sophia on thrones Reverse: Large K, Mintmark 1 x al-Malik ibn Marwan (687-705), Byzantine style Follis Obverse: Imperial figure holding globe and cross Reverse: M and inscription 1 x Alexius I (1081-1118) Tetarteron, Thessalonica, Obverse: IC-XC to left and right of nimbate bust of Christ facing, holding book of gospels and raising right hand Reverse: ALZI DECP, crowned bust of Alexius facing, wearing jewelled chlamys, holding cross-tipped sceptre and cross on globe 1 x Phocas (602-610) Half Follis. Obverse: DN FOCA PERP AVG Crowned bust facing, wearing consular robes, holding mappa and eagle-tipped scepter Reverse: Large XX