Delmatius, AR Siliqua, 19 mm, 2.37g. 337 AD, Constantinople. 

No legend, diademed head of Delmatius right, eyes raised. 
DELMATIVS CAESAR, Victory advancing left, holding wreath and
palm branch.

Mintmark: C dot I

RIC VII p. 719 (Addenda), 136A.

Sold by Heritage World Coin Auctions, April 2014.
Added July 2011.