Watch List notes:

ISLAND OF IONIA, Samos, silver diobol, (499-495 B.C.), (1.11 g), obv. lion scalp facing, rev. anepigraphic head and neck of an ox to left, within incuse square, (S.-, Barron Samian standard, p.177, Nos 1-6, Pl.I; HGC 6, 1202 [R2], BMC 26, examples known in Athens, Berlin and Vienna). With hoard patination, otherwise nearly very fine and very rare.

Ex CNG Mail Bid Sale 61, September 25, 2002 (lot 2756 part).
No examples listed in Coin Archives. An early example of diobol fraction from Samos.