here is a neat coin from Siscia without a workshop. It is listed in RIC for Crispus and Constantine I; but not for Licinius II. Some familiar people used to own it--Ex. Keith Metzer (Arles) and ex Jeff Clark VOTA collection.
https://www.notinric.lechstepniewski.info/7sis-145_lic2.html Licinius II
20mm 3.2g
LICINIVS IVN NOB C, laureate head right
CAESARVM NOSTRORVM around wreath containing VOT / V
In ex. SIS
RIC VII Siscia –