Watch List notes:

Macedon, Chalkidian League AR Tetrobol. Olynthos, circa 425-420 BC. Laureate head of Apollo left; Δ behind / Kithara within incuse square, XAΛKIΔEΩN around. Robinson & Clement Group C, 24 (A19/P14); SNG ANS 516-7 var. (distribution of ethnic). 2.34g, 14mm, 2h.

Very Fine, edge split, obverse double struck.

From the Mark Christenson Collection;
Ex CNG E-Auction 281, 20 June 2012, lot 34.