Greek Italy.   Northern Lucania, Posidonia.    AR Nomos, c. 470-445 BC.   Obv.    ΠOME. Poseidon standing right, drapery hanging over shoulders, preparing to cast trident.        Rev.   ΠOME. Bull standing left within incuse circle.     HN Italy 1114; SNG ANS 651-3; HGC 1 1151.     8.14 g.   19 mm.      R.  Toned, well centred.    VF.