Watch List notes:

Constantine X Ducas, 1059-1067. Histamenon (Gold, 25 mm, 4.37 g, 6 h), Constantinople. +IhS IXS REX REGNANThIm Christ, nimbate, seated facing on straight-backed throne, raising hand in benediction, holding Gospels. Rev. +KѠN RACΛI O ΔOVKAC Constantine standing facing, wearing crown and loros, holding labarum with pellet on shaft, and globus cruciger. DOC 1. SB 1847. Obverse struck from a worn die, otherwise, very fine.
From a European collection, formed before 2005.