This coin of Maximianus bears quite the resemblance to Carinus. This is an early issue for Maximianus and the engravers at Rome may not have been sure of what he looked liked, so they merely copied the image of Carinus.
Maximianus
A.D. 285- 286
22x23mm 3.3gm
IMP MAXIMIANVS P F AVG; radiate, draped and cuirassed bust right.
IOVI CONSERVAT AVGG; Jupiter standing left, leaning on sceptre and holding thunderbolt.
In ex. XXIZ
RIC Vii Rome 506
