ELIS. Olympia. Circa later 390s-380 BC. Hemidrachm (Silver, 17 mm, 2.72 g, 8 h), obverse die signed by Polykaion. Head of eagle with short neck to right; below beak, ΠΟ. Rev. F-A Thunderbolt, with wings below and volutes above; all within olive wreath. BCD Olympia 98 (same dies). Dewing 1872 (same dies). Seltman pl. VIII, 20 (same obverse die). SNG Delepierre 2120 (same dies). SNG Lockett 2403 (same dies). Very rare. Light scratches, otherwise, very fine.