Constantius II, AE follis, Thessalonica.

FL IVL CONSTANTIVS NOB C, laureate, draped, cuirassed bust right.
CAESARVM NOSTRORVM around VOT dot X within wreath.
Mintmark TS delta VI.

RIC VII Thessalonica 125 var (unlisted for Constantius II)

This coin: with permission of capitolinecoins.com; 
another in the collection of James b4 of the Forvm Ancient 
Coins, Nov. 2011.