Watch List notes:

MACEDON, Skione. Circa 470-454/3 BC. AR Tetrobol (11mm, 2.83 g, 7h). Male head right, wearing tainia / Helmet right within incuse square. AMNG III/2, 3; HGC 3, 674 (this coin illustrated); CNG 63, lot 142 (same dies). VF. Very rare early helmet issue.

Ex Classical Numismatic Group 91 (19 September 2012), lot 124.