Watch List notes:

Greek Italy. Bruttium, Kaulonia. AR Diobol, c. 475-425 BC. D/ Stag standing right. R/ KAΛ (retrograde, the Λ upside down). HN Italy-. SNG ANS-. Noe-. AR. g. 0.82 mm. 9.00 RRR. Extremely rare and unlisted in the standard references. VF.

Apparently the fourth specimen known.