Constantine X Ducas (1059-1067) AE follis (Bronze 7,44g 30mm) overstruck on unknown anonymous follis, Constantinople mint.
Obv: ЄMMANOVHA, nimbate Christ standing facing on footstool, wearing pallium and colobium and holding book of Gospels with both hands; IC - XC in upper fields
Rev: + KωN T ΔK ЄVΔK AVΓO (or similar, mostly illegible), Eudocia on left and bearded Constantine on right standing facing; between them they hold a labarum with cross on shaft resting on three steps.
Ref: Sear 1853;