328 NGC XF Constantine I Nummus AE3 Roman Empire Campgate Siscia (25082302C)Extremely Fine Emperor Constantine I, the Great, Roman Empire billon AE3 nummus coin. Struck as Augustus between 328 to 329 CE at the Siscia Mint, SIS workshop B. S 16253, approx 19mm, 2. 68g. Superb portrait. Certified by NGC to XF Repatinated (I disagree with this remark). Dark toned, oblique lighting used to show details. Obverse: CONSTANTINVS AVG, laureate head right. Reverse: PROVIDENTIAE AVGG, camp gate with no doors, two turrets, star above;