Paros.
Drachm circa 490, AR 6.05 g. Goat kneeling r.; in exergue, dolphin r. Rev. Irregular incuse square with rough surfaces. ACGC pl. 6, 120 (this obverse die). Lederer, RSN 30, 1943, pl. 2, 34 (this obverse die). Sheedy 48a (this coin illustrated).
Rare. Struck on fresh metal and with a lovely old cabinet tone, about extremely fine
Ex Hess-Leu 31, 1966, 375; Leu 28, 1981, 120; Sternberg XIX, 1987, 175 and NGSA 6, 2010, 77 sales.