Watch List notes:

Attica, Athens. 449-404 B.C. AR tetradrachm (26.75 mm, 16.99 g, 9 h). Possible Eastern imitation. Helmeted head of Athena right, countermark on cheek / AΘE, owl standing right with head facing, olive sprig and crescent behind; all within incuse square. Kroll 8; SNG Cop 31. Fine, test cuts and bankers mark.