After years of searching I was finally able to obtain a satisfying specimen of this scarce reverse type. Well, to be honest I found two identical specimen at the same time and I got both for a really reasonable price.
FL VAL CONSTANTINVS NOB CAES; Laureate head right.
CONSERVATOR AFRICAE SVAE; Africa standing facing, head left, in long drapery with elephant- skin head-dress, right holding standard, left tusk, at feet to left lion with captured bull, in right field I.; SE in left field, F in right.
In ex. Δ
RIC VI Carthage 58
10,2 gr for number 1
8,5 gr for number 2