LUCANIA, Poseidonia, c. 470-445 BCE, AR Nomos. 7.83g, 19.2mm.
Obv: Poseidon advancing right, wielding trident overhead; ΠOMEΣ before.
Rev: Bull standing left in circular incuse; ΠOMEΣ (retrograde) above.
HN Italy 1114; SNG ANS 651-3.
From the zumbly collection.