https://en.numista.com/catalogue/pieces40300.html
this sheet is not complete
These are differnt types of this coin:
RIC 157a (Radiate, draped bust right) -> RIC 157; Gobl 573d
RIC 157k (Radiate head right) -> RIC V-2 157; RSC 5a; Cunetio 1159; Goebl 660q1; Cohen 5
RIC 157k var (Radiate head right, no B in field) -> RIC V-1 157 Rome (Sole reign) var (bust type); Goebl 0574w; Sear 10164
RIC 157l (Radiate head left) -> RIC V-1 157 Rome (Sole reign) var (bust type); Goebl 0574w; Sear 10164
RIC 157 (Radiate, cuirassed bust right) -> RIC 157; Gobl 573d
RIC 157 (Radiate, cuirassed bust right, no B in field)-> RIC 157 var (no B in field); Gobl 573w
I have the RIC 157k

Thank you
PS
All these informations come from
http://www.wildwinds.com/coins/ric/gallienus/i.html
http://numismatics.org/ocre/id/ric.5.gall(2).157
http://dirtyoldbooks.com/roman/id/Coins-of-Roman-Emperor-Gallienus.htm