Rare bronze, R5 in Ivan Varbanov's 'Greek Imperial Coins' catalogue.
Roman Provincial
Thrace, Mesembria, Philip I Arab and Otacilia Severa (244-249), AE
Obverse: Confronted busts of Philip I Arab and Otacilia Severa
ΑΥΤ Μ ΙΟΥΛ ΦΙΛΙΠΠΟC Μ WΤ ϹƐΒΗΡΑ ϹƐΒ
Reverse: Zeus standing left, holding patera and long sceptre
ΜΕϹΑΜΒΡΙΑΝΩΝ
Diameter 26 mm, weight 11.29 g