Watch List notes:

Mysia, Kyzikos EL Stater. Circa 500-450 BC. Winged dog seated to left, head reverted to right; tunny fish to left below / Quadripartite incuse square. Von Fritze 104; Greenwell 140; Boston MFA 1433; SNG France 245; BMC -; Gillet -; Gulbenkian -; Jameson -; cf. Rosen 485 (hekte); Weber 5019. 16.10g, 21mm.

Extremely Fine; uncommonly, marked with a curious banker's mark: crab?

From the inventory of a UK dealer.