Alexander, AE follis, Carthage mint, AD 308-311.

Obv: IMP ALEXANDER PF AVG, laureate head right.
Rev: IOVI CONSERVATORI, Jupiter standing front, chlamys falling 
behind, holding thunderbolt and sceptre.
Mintmark PK.

RIC VI Carthage 69; Sear 15083.
Rated R5.

with permission of cngcoins.com. Sept 2013.