Alexius I Comnenus, 1081-1118. Half Tetarteron (Bronze, 13 mm, 0.61 g, 6 h), uncertain mint. Half-length bust of Alexius I facing, wearing loros and crown with pendilia. Rev. Large patriarchal cross set on two steps flanked by A/K and K/Φ. DOC 45d.2. SB -. Very rare. Attractive green patina. Struck on a somewhat short flan and with breaks in patina, otherwise, very fine.