Theodosius II AE4. Cyzicus. 

DN THEODO-SIVS PF AVG, pearl diademed, draped, cuirassed bust right.
No legend, cross within wreath, X in jewel at top of wreath.

Mintmark SMKB in ex. 

RIC X 449, rated common (very scarce in this condition)

Contributed by Online Store of the Forum Ancient Coins,
Item 81883, August 2009.