Watch List notes:

Arkadia, Kleitor. Ca. 370-350 B.C. AE chalkous (13.9 mm, 2.19 g, 3 h). Helmeted head of Athena right / K-Λ-H, horse galloping right. SNG Cop 227; BCD 1426. aVF, green patina. 

Ex BCD collection with his round tag.