Watch List notes:

Rhaucus. Stater circa 330-300, AR 11.03 g. Poseidon Hippios, nude, holding trident and standing beside his horse, l. forepaw resting on a rock. Rev. PAY (retrograde) – KION Trident; in r. field, dolphin. Svoronos Crète, pl. XXIX, 14. Le Rider Crète, pl. 30, 17.
Struck on unusually fine metal and with a light iridescent tone, die-break
on obverse, otherwise good extremely fine

Ex Gorny & Mosch 232, 2015, 246 and Gorny & Mosch 249, 2017, 266 sales.