another fake, with the seller's description below-
Alexander of Carthage. Usurper, AD 308-310. AE Follis (22 mm, 2.0 gr). Carthage mint.
OBV. IMP ALEXANDER P F AVG, laureate head right
REV. S P Q R OPTIMO PRINCIPI, aquila between two signa, one on left surmounted by hand, one of right surmounted by wreath; PK. RIC VI 72; nice brown and green patina; slight chips along the edge. Extremely Rare.
Provenance: This coin has been in my personal collection for many years. It was purchased from Numismata coin fair in Munich as part a large collection of Late Roman coins.