The Prospero Collection of Ancient Greek Coins. SICILY. Syracuse , Agathokles (317-289 B.C.), Silver Tetradrachm, 17.13g,. Struck c.310-305 B.C. KOPAΣ , Head of Kore facing to right, wearing a wreath of grain-ears in her hair, and an earring. Rev. AΓA[ΘOKΛEIOΣ] , Nike standing to right, erecting a trophy of arms, triskeles on right (M. Ierardi, ‘Tetradrachms of Agathocles of Syracuse’, AJN 7- ...