Watch List notes:

ISLANDS OFF ATTICA, Aegina. Circa 470/65-445/40 BC. Stater (Silver, 18 mm, 11.98 g). T-back sea turtle. Rev. Square incuse with large skew pattern. HGC 6, 435. Meadows Group IIIa. Uncertain banker's mark on shell. Porous, otherwise, very fine.