ISLANDS OFF CARIA, Rhodos.  Ialysos

c. 480-408 BCE
AR obol, 9 mm, 0.6 gm

Obv:  forepart of winged boar left
Rev:  helmeted head of Athena right within incuse square
Ref:  SNG Keckman 315; Karl 373; SNG München 563. Rare; 6 in ACsearch

A lucky eBay find brought to my attention by a forum friend, 2013.