Domitius Alexander was a high-ranking administrator in Carthage loyal to the Maxentius-Maximinus II alliance. It seems Maxentius ordered tribute from Alexander and he refused. The legions proclaimed him emperor and he held on for about a year before succumbing to loyalist soldiers.

RIC 66, C 2 Follis Obv: IMPALEXANDERPFAVG - Laureate head right.
Rev: GLORIAEXERCITVSKART Exe: K - Alexander riding horse right, raising horse right. (Carthage).

RIC 68 Follis Obv: IMPALEXANDERPFAVG - Laureate head right.
Rev: INVICTAROMAFELIXKARTHAGO Exe: K - Carthage standing, facing, holding fruit in both hands. (Carthage). $2,800 1/16/02.

RIC 69, C 7 Follis Obv: IMPALEXANDERPFAVG - Laureate head right.
Rev: IOVICONSERVATORI - Jupiter standing left, holding Victory on globe and scepter. (Carthage).

RIC 72 Follis Obv: IMPALEXANDERPFAVG - Laureate head right.
Rev: SPQROPTIMOPRINCIPI Exe: K - Legionary eagle with vexilla on either side. (Carthage). $1,800 1/16/02.

RIC 75v Follis Obv: IMPALEXANDERPFAVG - Laureate head right.
Rev: ROMAEAETERNAE Exe: •K - Temple with six columns; Roma within. [RIC unlisted exergue marking].