Constantine I, 307/310-337. Follis (Bronze, 18 mm, 3.58 g, 6 h), Rome, circa 320. CONSTAN-TINVS AVG Helmeted and cuirassed bust of Constantine I to right, the helmet decorated with two stars. Rev. ROMAE A-ETERNAE / P - R / R P Roma seated right, inscribing with her right hand shield set on her left knee with X/V in two lines; at her side, shield. RIC 148 var. (unlisted officina). An interesting piece with a very unusual helmet design. Struck from a somewhat worn reverse die, otherwise, very fine.