Constantine I, The Great, 306 - 337 AD
AE Follis, Treveri Mint, 19mm, 3.18 grams
Obverse: CONSTANTINVS AVG, Laureate head of Constantine right.
Reverse: PROVIDENTIAE AVGG, Campgate with no doors, two towers and star above, PTR and pellet within crescent in exergue.
RIC 475