I recently realized that I did not currently have examples of campgates from every mint. I have fixed that problem! Here are two recent additions--
Constantine I
A.D. 317
Ӕ nummus 20mm 4.0g
IMP CONSTA-NTINVS AVG; laur., dr., globe, scepter in l. hand, mappa in r.hand
PROVIDEN-TIAE AVGG [In honor of the foresight of the Emperors] campgate with three turrets and no doors.
in ex. MHTB
RIC VII Heraclea 16
Constantine I
A.D. 325- 326
Ӕ nummus 19mm 3.5g
CONSTAN-TINVS AVG; laureate head right.
PROVIDEN-TIAE AVGG; camp gate, two turrets, no doors, star above.
In ex. SMALB
RIC VII Alexandria 34