Royal_formula_of_Parthian_coinage
Greek inscriptions similar to "ΒΑΣΙΛΕΩΣ ΒΑΣΙΛΕΩΝ ΑΡΣΑΚΟΥ ΕΥΕΡΓΕΤΟΥ ΔΙΚΑΙΟΥ ΕΠΙΦΑΝΟΥΣ ΦΙΛΕΛΛΗΝΟΣ", meaning "[coin] of king of kings Arsaces, the benefactor (Euergetes), the just (Dikaios), the illustrious (Epiphanes), friend of the Greeks (Philhellen)", are found on coins of the Parthian Empire, starting from the reign of Artabanus I.[1] Some variations of this inscription exist.
The name Arsaces indicates the Arsacid dynasty and appears until the period of Phraates IV.[2]