Watch List notes:

MYSIA. Kyzikos. Circa 550-450 BC. Stater (Electrum, 18 mm, 16.11 g). Forepart of a winged bull to left; behind, tunny angled downwards to left. Rev. Quadripartite incuse square. BMFA 1439 (same obverse die). Greenwell 125. SNG Paris -. Von Fritze 60, and pl. II, 11 (same obverse die). Light toning around the devices. Good very fine.
From a European collection, acquired prior to 2020, previously in a south German collection, acquired prior to the 1990s.