Byzantine Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.28 g. 28 mm. Constantinople, 1071 - 1078 AD. Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.28 g. 28 mm. Constantinople, 1071 - 1078 AD.
Byzantine Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.28 g. 28 mm. Constantinople, 1071 - 1078 AD. Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.28 g. 28 mm. Constantinople, 1071 - 1078 AD.