Herakles - SPHINX! Chios, Ionia. AE 16. $147.50 on 25th Oct. 2001. HERAKLES NUMISMATICS, INC. Ionian Islands, Chios 3rd Century B.C. AE 16 mm. 3.551 grams. Obverse: Sphinx seated l. Reverse: Vine-wreath encircling two bands placed crosswise. BMC 41-43. Very Fine+ Herakles Numismatics, Inc.