Michael VII Ducas with Maria (1071-1078). EL Tetarteron Nomisma (19mm, 4.00g, 6h). Constantinople. Bust of the Theotokos facing, holding nimbate head of the infant Christ. R/ Crowned busts of Michael and Maria facing, both holding between them long cross, shaft ornamented with X above pellet within crescent. DOC 5a; Sear 1872. VF