Byzantine Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.31 g. 31 mm.) Constantinople, 1071 - 1078 AD. Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.31 g. 31 mm.) Constantinople, 1071 - 1078 AD
Byzantine Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.31 g. 31 mm.) Constantinople, 1071 - 1078 AD. Michael VII Ducas, AV, Histamenon Nomisma (Gold 4.31 g. 31 mm.) Constantinople, 1071 - 1078 AD