Valentinian III (poss. by Gaiseric (Vandals). Carthage? mint. 425-455 AD.

DN VALENTIN.., pearl diademed, draped, cuirassed bust right.
SALVS REI-PVBLICE, campgate, two turrets, 5 or 6 layers, no
star above, no doors.

Not in RIC. Cf. RIC X 2123/3823. CNG 88, Lot 1450.
Very rare. 

CNG 88, Lot 1450. Estimate $300.
Sold for $360. 

This new coin combines an obverse of Valentinian with a 
revere type known from the non-imperial coins attributed 
to Carthage. The name of Valentinian on this coin may 
speak for an attribution to Carthage.