CONSTANTINUS X.1059-1067 AD.Constantinople Mint.AR Histamenon (27mm, 4.4 g) Obverse : Isaac standing facing, wearing crown and loros, holding labarum and globus cruciger Reverse : +IhS IXS REX REGNANTIUM; Christ, nimbate, seated facing on straight-backed throne, raising hand in benediction, holding Gospels.