Gallienus (253-268). BI (hybrid?) Antoninianus, uncertain mint. D/ GALLIENVS AVG. Radiate and cuirassed bust right. R/ PRINC IVVENT. Prince in military dress standing left, holding globe and spear. RIC - (cf. 265: at foot, captive; P in field). BI. g. 1.78 mm. 19.00 RRR. Very rare, not listed in RIC and apparently unpublished. Green brown patina. VF.