Watch List notes:

Islands off Attica. Aegina. Circa 456/45-431 BC. Stater (Silver, 19 mm, 12.23 g). Land tortoise with segmented shell. Rev. Incuse square with a skew pattern. ACGC 127. Milbank pl. 2, 12. SNG Copenhagen 516. Nicely toned and well-centered. About extremely fine.
From a European collection.