Crispus, AE follis, London, 318 AD.

FL IVL CRISPVS NOB CAES, laureate, cuirassed bust right.
SOLI INVIC-TO COMITI, Sol standing left, chlamys across left shoulder, 
holding globe and raising right hand.
Crescent in left field.
Mintmark PLN

RIC VII London 143, rated R3.

With permission of Roma Numismatics, April, 2011