Alexius I Comnenus, 1081-1118. Tetarteron (Bronze, 18 mm, 3.77 g, 6 h), Constantinople. IC - XC Bust of Christ facing, cross behind head, holding Gospels; in upper fields to left and right, crescents. Rev. + ΑΛΕΞΙ ΔΕCΠΤ Bust of Alexius I facing, wearing crown and loros, holding jewelled scepter and globus cruciger. DOC 34. SB 1921. Dark green patina. Good very fine.