Here is a nice looking coin on a large flan with some silvering.
This type references the victory of Maximianus over the Quinquegentiani -- a rebellious tribe in North Africa.
Maximianus
A.D. 297- 298
30x31mm 9.9gm
IMP MAXIMIANVS P F AVG; laureate head right.
FELIX ADVENT AVGG NN; Africa standing left, holding labarum and tusk; at feet, lion with captured bull, in left field H
in ex. PKB
RIC VI Carthage 25b
here is the other coin issued around the same time, commemorating the same event-- SALVIS AVGG ET CAESS AVCTA KART