Visona writes that Herakleia's precise location is unknown, known from its coinage. Modern works suggest a town on Pharos island (modern day Hvar island on the Croatian coast), BMC places the city on the mainland whilst SNG Cop suggests an island named Herakleia. The "Barrington Atlas of the Greek and Roman World" does not even list a city of this name anywhere near Illyria or Dalmatia.
|BMC 1||Herakleia, Illyria, AE litra, 24mm. ca 350-320 BC. Head of Herakles right wearing lionskin headdress / HΡAKΛ beneath bow and club with a discus or shield (or large dot) betwen them. BMC 1-2; Mionnet Supp. II, 29-30; Imhoof, Klagenfurt 58; Visona H4 in SNR 2005 (this coin).||Text||Image|
|Visona H3||Herakleia, Illyria, AE litra, 24mm, 17.81 g. ca 350-320 BC. Head of Herakles right wearing lionskin headdress / HΡAK beneath bow and club. Mionnet Supp. II, 28; Imhoof, Klagenfurt 60; Visona H3 in SNR 2005 (this coin).||Text||Image|