ISLANDS OFF ATTICA. Aegina. Circa 525-475 B.C. AR stater. 12.19 gm. 17 mm. Sea turtle / Incuse square with skew device. HGC 6, 433. SNG Copenhagen 502. Near Very Fine; pleasingly toned; small punch mark on obverse (very similar to SNG Copenhagen example, which calls it a 'trade-counterstamp'), additional small punch marks in center of skew on reverse.