Gallienus AD 253-268. Antoninian (20-23mm; 2.20g; 12h) Rome 7th issue, 262 G[ALLI]ENVS AVG Radiate bust to right. Rev. SECVRIT A[V]G Securitas standing left, legs crossed, leaning on column, raises right hand to head; in field to right, VI.
Bigger head of Gallienus than previous coin. Extremely rare.
C. 951; Cunetio 1096 (2 known); MIR 504f (3 known) RIC V, I (sole reign) p. 181, 568 (Rome).
From the stock of Münzen und Medaillen AG Basel 1969.