CC231 Archaic 1/2 obol, VF, ex-Rosen $89.53 Sep-28-00 Kyzicus, Mysia, AR hemiobol, (0.50g) 550-480 BC, Tunny head left. / Quadripartite incuse square. Rosen 515 (this coin). Toned VF Ex-Jonathan P. Rosen collection.