Watch List notes:

GREEK COINS

Islands off Caria. Rhodos. Rhodes. Circa 408/7-390 BC. Hemidrachm (Silver, 12 mm, 2.02 g, 11 h). Head of Helios facing, turned slightly to the right. Rev. P O Rose within an incuse square. Ashton 19. BMC 3. SNG Copenhagen 725. SNG Keckman 368. Attractively toned, and with a head of Helios with dramatically staring eyes. Minor flan fault on the obverse to right, otherwise, extremely fine.

From the RRG collection and that of S. Pozzi, Naville I, 4 April 1921, 2677.
The head of Helios on this coin is surely struck from a die engraved by an artist of great talent, one who undoubtedly was responsible for tetradrachms as well.