Watch List notes:

Auction 88 Part I
Greek Coins
Attica, Athens

Tetradrachm circa 478, AR 17.18 g. Head of Athena r., wearing crested Athenian helmet and disc earring. Rev. ΑΘΕ Owl, with closed wings, standing r. with head facing; in upper field l., olive sprig with berry and two leaves; all within partially incuse square. Svoronos pl. 8, 4. Seltman 413. Starr 8.
Very rare and in unusually fine condition for this difficult issue. Of fine
Archaic style, almost invisible traces of overstriking on obverse,
otherwise good very fine / about extremely fine

Ex Aretusa sale 2, 1994, 146.