Continental Greece. Attica, Athens. AR Tetradrachm, c. 454-404 BC. D/ Helmeted head of Athena right, with frontal eye. R/ Owl standing right, head facing; olive sprig and crescent to left; all within incuse square. Kroll 8. HGC 4, 1597. SNG Cop. 31. Gulbenkian 519-21. g. 17.21 mm. 24.50 An outstanding example. About EF.