Your coin is a Roman provincial from Ephesus in Ionia. The reverse inscription EΦECIΩN is the city name in the Greek genitive plural meaning "[coin] of the Ephesians". The image is of two children seated below the famous Ephesian cult statue of Artemis. The obverse inscription is very worn but wildwinds.com lists a similar coin for Geta (Caesar AD 198-209, Augustus AD 209-212). If the coin is indeed of Geta, the two children may represent Geta and his brother Caracalla.
First you will need to determine the ruler. A quick check at CNG reveals that this type was issued under a number of emperors, not just Geta. Without a legible name, that's easier said than done.
