Not in RIC. I can't find it on the two online Gallienus pages here and here. Not at acsearchinfo. Anyone have a reference for this coin? Thanks!
There are too many varieties of Gallienus coins. They were either in sole or in joint reign with Valerian. Lots of them are unpublished. I found a coin with a star on left reverse but for Providentia and not Pax. RIC 395(joint reign). Anyway, she's holding a cornucopia there.