I the these two Constantius II coins I attributed a long time ago as coming from the same mint. Obviously that is wrong.
The first coin I believe I am right when I attribute it as Sirmium RIC VIII 86 or 90: AE3. 355-361 AD. DN CONSTANTIVS PF AVG, diademed, draped & cuirassed bust right / SPES REIPVBLICE. Emperor standing left leaning on sceptre & holding globe, -S- to left.
The second coin is very similar with at least two obvious differences. First, there is no S in the field on the reverse. But also the bust types are different enough to make me wonder where it may have been struck besides Sirmium. Any ideas?

