Watch List notes:

Greek Italy. Southern Lucania, Thurium. AR Obol, circa 443-400 BC. D/ Head of Athena right, wearing Attic helmet decorated with wreath; behind neck-guard, Δ. R/ Forepart of bull right; above, ΘΟΥ; to left, Δ. HN Italy -. Cf. 1760 (stater). AR. g. 0.46 mm. 9.00 RRR. Extremely rare. About EF.

Apparently unbublished obol related to lettered first issue of Thurium.