Watch List notes:

SICILY, Akragas. Circa 465/0–445/0 BC. AR Tetradrachm (25mm, 17.04 g, 7h). Sea eagle standing left / Crab, with carapace in the form of a human face, within incuse circle. Westermark, Coinage, Period II, Group I, 352.7 (this coin); HGC 2, 77 (same obv. die as illustrated); SNG ANS 973 (same obv. die). Attractively toned, reverse a bit lightly struck, areas of minor porosity. In NGC encapsulation 5872733-099, graded Ch VF, Strike: 4/5, Surface: 3/5.

From the Robert W. Bartlett Bequest Sold for the Benefit of the American Numismatic Society. Ex Kagin's Numismatic ANA Auction (16 August 1983), lot 1504; Schweizerische Kreditanstalt FPL 38 (April 1982), no. 36.