Roman – Gallienus – Billon – Antoninianus – REV SECURIT PERPET – 253 A.D. – 268 A.D. – 20mm – Reverse shows Securitas leaning on column – Gallienus took control of the Empire at a time when it was undergoing great crisis. His record in dealing with those crises is mixed, as he won a number of military victories but was unable to keep much of his realm from seceding.