This coin is not in RIC for the bust left, though several are already known.
http://www.notinric.lechstepniewski.info/6rom-358.htmlConstantine I
AD 312-13
17mm 2.5gm
FL VAL CONSTANTINVS AVG; bust left, laureate, draped and cuirassed, seen from rear.
PACI PERPET; Pax stg. facing, head l., r. holding branch, l. standard; in left field XII.
in ex. RQ
RIC VI Rome –