Watch List notes:

Attica, Athens. ca. 510-500 B.C. AR tetradrachm (23.03 mm, 17.10 g, 12 h). Seltman Group L. Helmeted archaic head of Athena right / AΘE, owl standing right, head facing, with spread tail feathers; olive sprig behind; all within incuse square. Kroll 7; Seltman nos. 328-346 (group L); Svoronos 6.1-17. aVF/F.