Ancient Greek, Athens (c. 407-404 BC), Silver Tetradrachm, 16.73g, Obv: Head of Athena facing to right side, wearing crested Attic helmet decorated with spiral palmette, Rev: To the right of the owl is an inscription in Ancient Greek letters, ?T?. An olive spring and crescent moon are sitauted behind, to the left. The motif and inscription are all set within an incuse square.Very Fine+. Rare.