Watch List notes:

Attica, Athens, AR tetradrachm, 2nd-1st centuries BC, new style owl (ca. 136/5 BC?), NGC AU, strike 5/5, surface 4/5. Cf. Thompson-319. 16.86 grams. Helmeted head of Athena right / Owl standing right, head facing, on amphora, Nike in quadriga to right with AP below. Nicely centered and problem-free. NGC #4374128-010.

Estimate: $1000-1500