Theodosius II (402-450) AE Nummus (Bronze, 11mm, 0.72g) Constantinople mint
Obv: D N THEODO-SIVS P F AVG, diademed, draped and cuirassed bust of Theodosius II right
Rev: Cross within wreath with medallion containing X at top; CON in exergue.
Ref: RIC 444 (Constantinople)