though rated common in RIC, this type is a bit tougher to find than that.
Diocletian
A.D. 298- 299
25x28mm 8.6g
IMP DIOCLETIANVS P F AVG; laureate head right.
FORTVNAE REDVCI AVGG NN; Fortuna seated left, holding rudder set on globe in her right hand and cornucopiae in her left; B in left, ✶in right.
In ex. TR
RIC VI Trier 230a