Gold histamenon nomisma (scyphate)
This Gold coin comes from the reign of Emperor Michael VII (A.D. 1071-1078) and is (26/31mm - approx 4.3g). The obverse features the bust of Christ, while the reverse shows the bust of Michael VII.
This example has been graded Extra Fine by NGC with a strike rating of 4/5 and a surface rating of 3/5. It is notated that this coin has been clipped, but it is still a very nice cup shaped coin.