Watch List notes:

SICILY. Messana (as Zankle). Circa 500-493 BC. Drachm (Silver, 22 mm, 5.48 g, 6 h). DANKLE Dolphin swimming to left within the sickle-shaped harbor of Messina; border of dots. Rev. Design of raised and sunken squares and triangles; in the center, cockle shell flanked by two raised rectangles. AMB 359. BMFA 285. Buceti 2a. Gielow 61 (this coin). Kraay-Hirmer 49. SNG ANS 300. Rare. Nicely toned and attractive. Nearly extremely fine.
Ex Classical Numismatic Group 42, 29 May 1997, 132 and Auctiones 23, 17 June 1993, 229 and and from the collection of Prof. K. Hahn, Cahn 61, 3 December 1928, 44.