Watch List notes:

MYSIA, Kyzikos. Circa 550-450 BC. EL Stater (21.5mm, 16.07 g). Tunny left between two dolphins swimming left / Quadripartite incuse square. Cf. Von Fritze I 95 (unlisted denomination); Greenwell –; Myrmekion 97; NAC 120, lot 384; NAC 106, lot 254; New York Sale IV, lot 180; Solidus Numismatik 37, lot 39. Toned, a few edge splits. VF. Well centered. Extremely rare, one of six known staters for this issue.

From the Jonathan P. Rosen Collection. Ex Roma XIV (21 September 2017), lot 208.