Watch List notes:

Lesbos, Mytilene. Ca. 412-378 B.C. EL hekte (10.5 mm, 2.55 g, 5 h). Head of Io right, wearing tainia, cow's ear and horn / Wreathed head of Dionysos right in linear square. Bodenstedt em. 77 (unlisted dies); SNG Cop 326; SNG von Aulock 1720. VF. 

From the Mayflower Collection. Ex Spink America Sale 8232 (7 December 1995), lot 2091.