Watch List notes:

EUBOIA. Chalkis. Circa 338-308 BC. Hemiobol (Silver, 7 mm, 0.29 g, 1 h). Head of the nymph Chalkis to right, wearing her hair in a roll, a pendant earring and a necklace. Rev. Χ - Α Eagle's head to right. BCD Euboia 134 (this coin). Picard Issue 6 (but this die pair unknown). Extremely rare. Well-centered and deeply toned. Some roughness and minor marks, otherwise, very fine / extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions and from the BCD Collection, Lanz 111, 25 November 2002, 134.