Constantine II, AE follis, London. AD 318. 

CONSTANTINVS IVN NC, laureate, draped, cuirassed bust right, 
seen from the back.
SOLI INVIC-TO COMITI, Sol standing left, chlamys across left 
shoulder, holding globe and raising right hand. 

Crescent in left field, star in right field.
Mintmark PLN.

RIC VII London 147 var (obv legend with star on rev); Sear 17106 var (ditto). 

With permission of Lee Toone, Jan 2015.