Isaac I Comnenus. 1057-1059. AV Histamenon Nomisma (28.5mm, 4.35 g, 6h). Constantinople mint. Christ Pantokrator enthroned facing, raising hand in benediction and holding Gospels / Isaac standing facing, holding drawn sword and scabbard. DOC 2; SB 1843. Light toning in devices, scratches in reverse margin. VF.