Watch List notes:

Elis, Olympia AR Stater. Circa 424-420 BC. Obverse die signed by 'Da'. Eagle standing to right, wings displayed, holding serpent in beak; [Δ]-A across lower fields / Winged thunderbolt with volutes; F-A across fields; all within circular incuse. Seltman, Temple 137 (BN/γη); SNG Copenhagen 365 (same dies); Pozzi 1831 (same dies); cf. BCD Olympia 58 (same obv. die) and 54 (same rev. die); HGC 5, 341.

NGC graded Ch F 4/5, 4/5 (#3819457-003). Very Rare, not in the BCD collection, only one other example from these dies on CoinArchives.

Ex Stephen Album Rare Coins, Auction 32, 13 September 2018, lot 3.