Watch List notes:

Gallienus. AD 253-268. Ӕ Sestertius (27.5mm, 13.53 g, 6h). Rome mint. 6th issue, AD 260-261. IMP GALLIENVS PIVS F AVG, laureate head right / LIBER[TAS AV]G, Libertas standing left, holding pileus and sceptre; S C across field. MIR 36, 452f (this coin illustrated); RIC V –; Banti –. VF/Near VF, green patina, areas of red encrustation. Apparently unique, this is the sole piece noted by MIR.

Ex Friedrich Collection (Numismatica Ars Classica, 2 April 1995), lot 1922.