Tetradrachm circa 454-404, AR 26 mm, 17.19 g. Head of Athena r., wearing crested Attic helmet. Rev. ΑΘΕ Owl standing r., head facing, olive sprig and crescent to upper l.; all within incuse square. Flament, Le monnayage en argent d'Athènes: de l'époque archaïque à l'époque hellénistique (c. 550-c. 40 av. J.-C.), Group II. Kroll 8. SNG Copenhagen 31. Svoronos pl. XIV. HGC 4, 1597. Light iridescent tone, virtually as struck and almost Fdc Ex Heritage sale 3073, 2019, 30101. Graded Ch AU Strike 5/5 Surface 4/5, Full Crest, NCG certificate number 4629244-057 (previously graded and no longer in holder) Please find here the video of the coin