Kuprilli, dynast of Lycia, ca 470-440 BC. AR stater, 20 mm, 8.43 g.

Horse or mule standing right, head left, biting its back leg.
KOPRLLE, triskeles left in dotted square in incuse.

BMC 68; Traite II-2 298 (this coin)

Image taken from Traité II-2.