Necklace w/ Roman silver coin of Empress

A necklace containing a Roman silver coin of the empress Otacilia Severa, the wife of Philip I, 244 - 249 AD. On the reverse of the coin is the Goddess Concordia seated left, holding a patera and double cornucopiae. The coin is 23mm and set in a silver bezel which is then strung on a silver chain. The coin is in nice condition and makes a nice piece of jewelry.