MYSIA. Kyzikos. Circa 550-450 BC. Stater (Electrum, 20 mm, 16.06 g). Forepart of a sphinx to left; to right, tunny diagonally downward. Rev. Quadripartite incuse square. BMFA 1427. SNG Paris 198. Von Fritze I, 71. Banker's mark on the obverse, otherwise, very fine.
From the Birger Bentsen Collection of ancient gold coins, ex Roma E-Auction 74, 20 August 2020, 559 (with collector's ticket).