Achaiion

Achaiion or Achaeïum or Achaeum () was a town in the Tenedian Peraia of the ancient Troad. The legend ("ACH") which some bronze coins found in this region bear is thought to refer to Ach(aiion) by Louis Robert, but others attribute the coins to Achilleion.
Its site is located near Hantepe, Asiatic Turkey.