Hello!
A couple of day ago I bought this piece of Saloninus:
Sold as SALON VALERIANVS CAES / SPES PVBLICA but it's an IMP SALON VALERIANVS AVG!
Here the die link with the obverse die "K" of Kropff list (the coin source is from Gilljam 1987, GS n. 17):
My second (or first!) Saloninus as Augustus... the other it's not (probably) an official issue:
https://medg.forumactif.org/t790-when-saloninus-met-postumus