137. MACEDON, Chalkidian League. Circa 432-348 BC. AR Tetradrachm (14.20 gm). Olynthos mint. Laureate head of Apollo right / Kithara. Robinson Clement Group F (dated 417-412 BC [A8/P-]); SNG ANS 470 (same obverse die). Good VF, attractive light gray toning. ($3000) CNG Mail bid sale #58, lot 137. Lot was unsold. Used by permission of CNG, www.historicalcoins.com