Watch List notes:

Sicily, Diobol, Akragas, Silanos Magistrate, c. 410-406 BC; AV (g 1,34; mm 10; h 11); [AK]PA, eagle standing l., holding serpent with talons; below, two pellets on rock. Linear border, Rv. ΣIΛA-NOΣ, crab; linear border. SNG Copenhagen 52; SNG ANS 998.
Rare, extremely fine.

Ex Classical Numismatic Group, Auction Triton IX, lot 685; Ex Münzen und Medaillen Deutschland, Auction 9, lot 89.