Watch List notes:

THESSALY. Larissa. Circa 479/475-460 BC. Obol (Silver, 10 mm, 0.82 g, 3 h). Head of the nymph Larissa to right, her hair bound with a ribbon and tied at the back. Rev. ΛAR Jason's sandal to right; all within incuse square. BCD Thessaly II, 348.1 (this coin). Well-centered. Slightly rough and reverse partially flat struck, otherwise, nearly very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions and from the BCD Collection, Triton XV, 3 January 2012, 348.1.

The iota cited by the BCD cataloguer on the reverse of this coin seems actually not to exist.