Attica, Athens (ca 440-404 BC) AR Tetradrachm (Silver, 22mm, 17.00g)
Obv: Head of Athena right, wearing crested Attic helmet ornamented with three laurel leaves and vine scroll
Rev: AΘE, owl standing right, head facing; olive sprig and crescent moon behind, all within incuse square.
Ref: HGC 4, 1597. SNG Copenhagen 31-40. Kroll 8.