Olynthos, Macedonia, Chalkidian League, AR tetradrachm, issued ca. 410-401 BC, 14.75 g.

Laureate head of Apollo left.
CAL KID [EW]N around lyre with seven strings with flat bottom sound chest and arm strap.

BMC 3; Sear SG 1424.

Sold by Noble Numismatics Pty Ltd - Auction 113, Lot 4829, Nov 2016.