Constantine I. AE Follis. 307 AD. Trier. 

FL VAL CONSTANTINVS NOB C, laureate, draped, cuirassed 
bust right, seen from the back
GENIO POPV-LI ROMANI, Genius, standing left, tower on 
head, loins draped, holding patera and cornucopiae. 

S-A across fields. 
Mintmark PTR. 

RIC VI Trier 694. Scarce

With permission of Roma Numismatics, November, 2009