Watch List notes:

MYSIA, Kyzikos. Circa 600-550 BC. EL Stater (20.5mm, 15.96 g). Tunny left above tunny right / Quadripartite incuse square. Künker 280, lot 201; otherwise unpublished, but cf. Hurter & Liewald III 36 (= Von Fritze I 15) for similar fractions with subsidiary symbols. Double struck on reverse. VF. Extremely rare.

From the Jonathan P. Rosen Collection. Ex Triton XX (10 January 2017), lot 188.