Manuel I, 1143-1180. Byzantine emperor. Tetarteron (a flat type, not the cup-shaped type). 21 mm. Large for type. Bust of St. George / half length figure of the emperor Sear 1975. Good busts both sides. Nice surfaces. [$33 + 3 in the US] There are more on this page: http://augustusmath.hypermart.net/crosses.html some near the top and some far down toward the bottom.