324 NGC Ch VF Constantine I Great Nummus AE3 Roman Empire Campgate Nicomedia Mint (25052201C)Choice Very Fine Emperor Constantine I, the Great, Roman Empire billon AE3 nummus coin. Struck as Augustus between 324 to 325 CE at the Nicomedia Mint, SMN, workshop S. S 16257, approx 19mm, 3. 01g. Certified by NGC to Ch VF (lt. scratches, well blended and not distracting). Obverse: CONSTANTINVS AVG, laureate head right. Reverse: PROVIDENTIAE AVGG, camp gate with no doors, two turrets, star above; SMNS in exergue. Camp gates may not actually depict