Gallienus, AE antoninianus. AD 260-261. Milan mint. Joint reign.

GALLIENVS AVG, radiate head left with slight drapery
on both shoulders.
LEG IIXX VI P VI F, Capricorn springing right.

RIC V-1, Milan 362 var (bust type); Göbl 0288e Milan (S); Sear 10273.

The reverse legend contains an engraver's error. The 
legion should be XXII, not IIXX (which would have been
Legion 18, destroyed in Germany during the time of 
Augustus and never restored.)

CNG sale, 2002, now in Marcy's collection.