Diocletian. A.D. 284-305. AE follis (8.65 g. 28 mm.)
Ticinum mint, Struck A.D. 298-299.

IMP DIOCLETIANVS PF AVG, laureate head right /

GENIO POPVLI ROMANI - ✩ // PT• , Genius standing left, holding patera and cornucopia.

RIC 33a.

Please, take a look to the results of the cleaning process with pictures from the previous condition uncleaned.