Watch List notes:

ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (21mm, 17.14 g, 8h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive sprig and crescent behind; all within incuse square. Kroll 8; HGC 4, 1597. Good VF, a few minor die flaws, banker's mark on obverse.

From the B. H. Webb Collection. Ex Classical Numismatic Group Electronic Auction 202 (14 January 2009), lot 59.