Watch List notes:

ARKADIA, Arkadian League. Circa 460-450 BC. Hemidrachm (Silver, 16 mm, 2.86 g, 11 h), Mantinea. Zeus Lykaios seated left on low throne, holding long scepter in his left hand and with eagle flying left from his right. Rev. A-R-K-A Head of the nymph Kallisto to left, wearing a simple necklace and with her hair bound with a taenia; all with incuse square. Cf. BCD Peloponnesos (Mantinea) 1465. BMC 22 (same reverse die). SNG Berry 858 (same dies). SNG Copenhagen 171 (same reverse die). SNG Cambridge 3845 (same dies). Williams IV, 2, 286 (O191/R186). Lightly toned and well centered. Very fine.
From an old South-German collection, formed before 1970.