Watch List notes:

ARGOLIS. Argos. Circa 470/460-440/430 BC. Hemiobol (Silver, 9 mm, 0.41 g, 9 h). Archaic letter heat (a vertical rectangle with a horizontal cross-bar). Rev. Α with pellet below within shallow circular incuse containing, in the upper part, two incuse rectangles. BCD Peloponnesos 1027 (this coin). Very rare. Nicely toned and well-centered. About extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions and from the BCD Collection, LHS 96, 8 May 2006, 1027.