Athens. AR Tetradrachm, Circa 454-400 BC. (25.5mm, 17.15g, 5h). Head of Athena to right; Rev.: Standing owl to right with head facing, olive sprig and crescent behind to left; all within incuse square. Kroll 8: HGC 4, 1597. Almost full crest for Athena. About Very Fine. Estimated Value $600 - UP