my latest campgate is a hybrid of Constantine I with a Caesar reverse.
Constantine I
A.D. 328- 329
18mm 3.0g
CONSTAN-TINVS AVG; pearl diademed head right.
PROVIDEN-TIAE CAES•; campgate, two turrets, no doors, star above.
In ex. SMNS
RIC VII Nicomedia 153/157-8 (for obv./rev.)