Constantine X Ducas, 1059-1067. Histamenon (Gold, 26 mm, 4.35 g, 6 h), Constantinopolis. +IҺS IXS REX REGNANTIҺm Christ, nimbate, seated facing on straight-backed throne, raising his right hand in benediction and holding book of Gospels in his left. Rev. +KωN RAC O ΔOVKAC Constantine X standing facing, wearing crown and loros, holding labarum with his right hand and globus cruciger in his left. DOC 1b. SB 1847. Minor edge crack, otherwise, about extremely fine.