Gallienus (253-268). BI Denarius. Rome mint. Obv. IMP GALLIENVS AVG. Radiate head right. Rev. SECVRIT PERPET. Securitas standing left, holding sceptre and leaning on column. RIC V 355; MIR 670t. 1.78 g. 18.5 mm. Green patina. Choice example. Good VF.