I found another coin with the same reverse that was struck at Laodiceia ad Mare, Syria. The obverse is not a match, but take a look at the reverse: http://www.acsearch.info/record.html?id=494603
I feel fairly confident that your coin is Caracalla and most probably struck at the above city. However, I do not have the exact reference for you. Sorry.
I feel fairly confident that your coin is Caracalla and most probably struck at the above city. However, I do not have the exact reference for you. Sorry.




















