Gallienus - Bil. denarius - Rome

Gallienus 253-268.
Bil. denarius, Rome, 264-265.
IMP GALLIENVS AVG Laureate head right.
SECVRIT PERPET Securitas standing left, leaning on column and holding sceptre.
1,90 g. RIC 162,355. Very rare. Obverse slightly off center. Grey patina with light silvering. Extremely fine