CENTRAL GREECE - ATTICA, ATHENS ATHENA OWL COIN ANCIENT SILVER TETRADRACHM **WITH A CERTIFICATE OF AUTHENTICITY SIGNED BY DAVID SEAR** ca. 420-430BC, ca. 27mm, ca. 17.21g. Obverse: Helmeted head of Athena right, wearing earring of circular form, pearl necklace, and crested helmet ornamented with three olive leaves along front edge, palmette on bowl, and spiral behind ear, her hair drawn across forehead in parallel curves.Reverse: AOE before owl standing right, head facing, in erect posture, the tail feathers represented as a single prong, olive sprig and lunar crescent in upper field to left, all within incuse square.Grade as per David Sear: Good EF, an outstanding example of this celebrated coinage. View our 100% Positive Feedback since 2006 and purchase with confidence.