Quick guess, as I have not enhanced the contrast and checked the placement of the letters yet.
Constantine X Ducas, with Eudocia. 1059-1067. Æ Follis (29mm, 8.59 g). Constantinople mint. Christ, nimbate, standing facing on footstool / Eudocia (left) and Constantine standing facing, between them, labarum with cross on shaft, resting on three steps. DOC 8; SB 1853.
