Constantine I, AE Half Follis, 312-313, Group V, Class I (b), Rome, Officina 4
FL VAL CONSTANTINVS AVG
Laureate, draped bust right, seen from behind
PACI P_ERPET
Pax standing facing, head left, branch in right hand, standard in left
XII in left field
RQ in exergue
17mm, 2.12g