Isaac I Comnenus. Gold Histamenon Nomisma (4.41 g), 1057-1059. Constantinople. + IhS XPS REX REGNANtinm; Christ Pantokrator enthroned facing, raising hand in benediction and holding Gospels. Reverse: + ICAAKIOC RACIΛEVC PωM; Isaac standing facing, wearing loros, holding sword and resting hand on hilt. DOC 2; SB 1843. Scarce. NGC photo cert grade  AU; Strike: 5/5, Surface: 4/5. Estimated Value $500 - UP 

Ex The William Oldknow Collection.