Watch List notes:

ISLANDS OFF CARIA, Rhodos. Kamiros. Circa 500-480 BC. Obol (Silver, 8 mm, 0.65 g). Fig leaf. Rev. Incuse square with linear divisions. SNG von Aulock 2781 (this coin). Very rare. Well-centered and clear with a grey patina as found. Good very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Münzen und Medaillen FPL 330, January 1972, 26 and from the collection of H. S. von Aulock.