Constantine I Billon Centenionalis RIC 153 Thessalonica

Billon Centenionalis (19mm 2.04g) Struck AD 326-328 Thessalonica

Obv: CONSTANTINVS MAX AVG Laureate bust right

Rev: PROVIDENTIAE AVGG Campgate with two turrets one star above.  in rt field SMTSA in exergue

RIC VII 153