Watch List notes:

Attica, Athens, Tetradrachm, c. 500-480 BC; AR (g 17,87; mm 22; h 12); Archaic head of Athena r., wearing crested Attic helmet and earring, Rv. ΑΘΕ, owl standing r., head facing; behind, olive sprig; all within incuse square. Seltman group G; SNG Copenhagen 19.
Lightly toned, about extremely fine - extremely fine.