Watch List notes:

ISLAND OF IONIA, Samos, silver hekte or sixth stater (c.530-526 B.C.), (2.33 g), obv. lion scalp facing, rev. anepigraphic rough incuse square, (S.-, Barron - Euboic and Lydo-Milesian standard, p.167, Nos 3-5, Pl.I; HGC 6, 1179 [R2], Weber 6288 = Greenwell NC 1890 Pl.1, 17). Bright, nearly extremely fine and very rare.

Ex CNG Mail Bid Sale 61, September 25, 2002 (lot 2756 part), lot includes sale indentification ticket.
No examples listed in Coin Archives. The earliest example of fractions from Samos.