Watch List notes:

ARKADIA. Stymphalos. Circa 370-350 BC. Obol (Silver, 11.5 mm, 0.97 g, 3 h). Head of Herakles to right wearing lion's skin headdress. Rev. ΣΤΥΜΦΑΛΙΟΝ (from bottom left) Head of crestless water bird to right. BCD Peloponnesos 1697 (same dies). SNG Copenhagen 285. Rare. Nicely toned. Some die rust on the obverse and some uncleaned deposits, otherwise, about extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, and from the collection of L. Mildenberg.