Watch List notes:

The Robert P Ball Cabinet of Ancient Coins | Sicily, Akragas, AR Didrachm, c. 495-485 BC, sea eagle standing left, AKRA above, rev. crab within incuse circle, 8.87g, 9h (HGC 2, 93; SNG Fitzwilliam 900; SNG Ashmolean 1656; Westermark 123), die wear to highest points, otherwise lightly toned, almost very fine.
Provenance
Bank Leu, by private treaty, 1968 - CHF550
Estimate: $1000 - $1500