Watch List notes:

Attica, Athens, tetradrachm, c. 440-404 BC, mid-mass coinage issue, head of Athena r., wearing earring, necklace, and crested Attic helmet ornamented with three laurel leaves and vine scroll, rev. AΘE, owl standing r., head facing, olive sprig with two leaves and one berry, and crescent moon behind, all within incuse square, wt. 17.23gms. (SNG Copenhagen 31-40; Kroll 8), extremely fine

Estimate: 600 - 700 GBP