Watch List notes:

ISLANDS off CARIA, Kos. Circa 525-480 BC. AR Diobol (10.5mm, 1.62 g). Crab / Incuse square with geometric pattern. Stefanaki Issue 4, 44–8 (E12/O11); Ingvaldsen pp. 3–4, 3i = Rosen 643 (same dies); HGC 6, 1296 var. (incuse). Struck with heavily worn obverse die. Near VF. Rare.