EUBOEA, Eretria. Circa 500-465 BC. AR Obol (8mm, 0.61 gm). Facing head of cow / Octopus in incuse square. BCD 324 (same dies); BMC Central Greece pg. 122, 33; SNG Copenhagen 473. VF, toned, soft obverse strike. Nice octopus.
Ex BCD Collection (not in Lanz auction); Stack's Coin Galleries (28 March 1977), lot 412.