Watch List notes:

Gallienus. AD 253-268. Quinarius (16mm, 1.46 g, 6h). Rome mint. 9th issue, AD 265+. GALLIENVS AVG, laureate head right / SECVRIT PERPET, Securitas standing left, legs crossed, holding sceptre and leaning on column. MIR 36, 591ff; RIC V (sole reign) 372; King 14 (same rev. die as illustration). Near VF, dark green patina, flan split, three spots of deposit on obverse. Extremely rare, only three noted by King (in London, Oxford, and Vienna).

Bought from CGB, Paris, 2011. Ex CGB Rome 30 (2012), no. 259300.