Constantinus I Follis, struck AD 312 - 313 at Ticinum mint.
Obv: IMP CONSTANTINVS P F AVG, laureate, draped and cuirassed bust right.
Rev: SOLI INVICTO COMITI / B T (in exergue), R - F (in fields), Sol standing left, holding glob, right hand raised.
2,71 g, 21 mm.